Patents Act 1977

• Citation: 1977 c. 37
• Sections: 237

Section 1 Patentable inventions.

(1) A patent may be granted only for an invention in respect of which the following conditions are satisfied, that is to say—

(a) the invention is new;

(b) it involves an inventive step;

(c) it is capable of industrial application;

(d) the grant of a patent for it is not excluded by subsections (2) and (3) or section 4A below;

and references in this Act to a patentable invention shall be construed accordingly.

(2) It is hereby declared that the following (among other things) are not inventions for the purposes of this Act, that is to say, anything which consists of—

(a) a discovery, scientific theory or mathematical method;

(b) a literary, dramatic, musical or artistic work or any other aesthetic creation whatsoever;

(c) a scheme, rule or method for performing a mental act, playing a game or doing business, or a program for a computer;

(d) the presentation of information;

but the foregoing provision shall prevent anything from being treated as an invention for the purposes of this Act only to the extent that a patent or application for a patent relates to that thing as such.

(3) A patent shall not be granted for an invention the commercial exploitation of which would be contrary to public policy or morality.

(4) For the purposes of subsection (3) above exploitation shall not be regarded as contrary to public policy or morality only because it is prohibited by any law in force in the United Kingdom or any part of it.

(5) The Secretary of State may by order vary the provisions of subsection (2) above for the purpose of maintaining them in conformity with developments in science and technology; and no such order shall be made unless a draft of the order has been laid before, and approved by resolution of, each House of Parliament.

Section 2 Novelty.

(1) An invention shall be taken to be new if it does not form part of the state of the art.

(2) The state of the art in the case of an invention shall be taken to comprise all matter (whether a product, a process, information about either, or anything else) which has at any time before the priority date of that invention been made available to the public (whether in the United Kingdom or elsewhere) by written or oral description, by use or in any other way.

(3) The state of the art in the case of an invention to which an application for a patent or a patent relates shall be taken also to comprise matter contained in an application for another patent which was published on or after the priority date of that invention, if the following conditions are satisfied, that is to say—

(a) that matter was contained in the application for that other patent both as filed and as published; and

(b) the priority date of that matter is earlier than that of the invention.

(4) For the purposes of this section the disclosure of matter constituting an invention shall be disregarded in the case of a patent or an application for a patent if occurring later than the beginning of the period of six months immediately preceding the date of filing the application for the patent and either—

(a) the disclosure was due to, or made in consequence of, the matter having been obtained unlawfully or in breach of confidence by any person—

(i) from the inventor or from any other person to whom the matter was made available in confidence by the inventor or who obtained it from the inventor because he or the inventor believed that he was entitled to obtain it; or

(ii) from any other person to whom the matter was made available in confidence by any person mentioned in sub-paragraph (i) above or in this sub-paragraph or who obtained it from any person so mentioned because he or the person from whom he obtained it believed that he was entitled to obtain it;

(b) the disclosure was made in breach of confidence by any person who obtained the matter in confidence from the inventor or from any other person to whom it was made available, or who obtained it, from the inventor; or

(c) the disclosure was due to, or made in consequence of the inventor displaying the invention at an international exhibition and the applicant states, on filing the application, that the invention has been so displayed and also, within the prescribed period, files written evidence in support of the statement complying with any prescribed conditions.

(5) In this section references to the inventor include references to any proprietor of the invention for the time being.

(6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Section 3 Inventive step.

An invention shall be taken to involve an inventive step if it is not obvious to a person skilled in the art, having regard to any matter which forms part of the state of the art by virtue only of section 2(2) above (and disregarding section 2(3) above).

Section 4 Industrial application.

(1) ..., an invention shall be taken to be capable of industrial application if it can be made or used in any kind of industry, including agriculture.

(2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Section 4A Methods of treatment or diagnosis

(1) A patent shall not be granted for the invention of—

(a) a method of treatment of the human or animal body by surgery or therapy, or

(b) a method of diagnosis practised on the human or animal body.

(2) Subsection (1) above does not apply to an invention consisting of a substance or composition for use in any such method.

(3) In the case of an invention consisting of a substance or composition for use in any such method, the fact that the substance or composition forms part of the state of the art shall not prevent the invention from being taken to be new if the use of the substance or composition in any such method does not form part of the state of the art.

(4) In the case of an invention consisting of a substance or composition for a specific use in any such method, the fact that the substance or composition forms part of the state of the art shall not prevent the invention from being taken to be new if that specific use does not form part of the state of the art.

Section 5 Priority date.

(1) For the purposes of this Act the priority date of an invention to which an application for a patent relates and also of any matter (whether or not the same as the invention) contained in any such application is, except as provided by the following provisions of this Act, the date of filing the application.

(2) If in or in connection with an application for a patent (the application in suit) a declaration is made, whether by the applicant or any predecessor in title of his, complying with the relevant requirements of rules and specifying one or more earlier relevant applications for the purposes of this section made by the applicant or a predecessor in title of his and the application in suit has a date of filing during the period allowed under subsection (2A)(a) or (b) below , then—

(a) if an invention to which the application in suit relates is supported by matter disclosed in the earlier relevant application or applications, the priority date of that invention shall instead of being the date of filing the application in suit be the date of filing the relevant application in which that matter was disclosed, or, if it was disclosed in more than one relevant application, the earliest of them;

(b) the priority date of any matter contained in the application in suit which was also disclosed in the earlier relevant application or applications shall be the date of filing the relevant application in which that matter was disclosed or, if it was disclosed in more than one relevant application, the earliest of them.

(2A) The periods are—

(a) the period of twelve months immediately following the date of filing of the earlier specified relevant application, or if there is more than one, of the earliest of them; and

(b) where the comptroller has given permission under subsection (2B) below for a late declaration to be made under subsection (2) above, the period commencing immediately after the end of the period allowed under paragraph (a) above and ending at the end of the prescribed period.

(2B) The applicant may make a request to the comptroller for permission to make a late declaration under subsection (2) above.

(2C) The comptroller shall grant a request made under subsection (2B) above if, and only if—

(a) the request complies with the relevant requirements of rules; and

(b) the comptroller is satisfied that the applicant’s failure to file the application in suit within the period allowed under subsection (2A)(a) above was unintentional.

(3) Where an invention or other matter contained in the application in suit was also disclosed in two earlier relevant applications filed by the same applicant as in the case of the application in suit or a predecessor in title of his and the second of those relevant applications was specified in or in connection with the application in suit, the second of those relevant applications shall, so far as concerns that invention or matter, be disregarded unless—

(a) it was filed in or in respect of the same country as the first; and

(b) not later than the date of filing the second, the first (whether or not so specified) was unconditionally withdrawn, or was abandoned or refused, without—

(i) having been made available to the public (whether in the United Kingdom or elsewhere);

(ii) leaving any rights outstanding; and

(iii) having served to establish a priority date in relation to another application, wherever made.

(4) The foregoing provisions of this section shall apply for determining the priority date of an invention for which a patent has been granted as they apply for determining the priority date of an invention to which an application for that patent relates.

(5) In this section “ relevant application ” means any of the following applications which has a date of filing, namely—

(a) an application for a patent under this Act;

(aa) an application in or for a country (other than the United Kingdom) which is a member of the World Trade Organisation for protection in respect of an invention which, in accordance with the law of that country or a treaty or international obligation to which it is a party, is equivalent to an application for a patent under this Act;

(b) an application in or for a convention country (specified under section 90 below) for protection in respect of an invention or an application which, in accordance with the law of a convention country or a treaty or international convention to which a convention country is a party, is equivalent to an application for a patent under this Act .

(6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Section 6 Disclosure of matter, etc. , between earlier and later applications.

(1) It is hereby declared for the avoidance of doubt that where an application (the application in suit) is made for a patent and a declaration is made in accordance with section 5(2) above in or in connection with that application specifying an earlier relevant application, the application in suit and any patent granted in pursuance of it shall not be invalidated by reason only of relevant intervening acts.

(2) In this section—

“ relevant application ” has the same meaning as in section 5 above; and

“ relevant intervening acts ” means acts done in relation to matter disclosed in an earlier relevant application between the dates of the earlier relevant application and the application in suit, as for example, filing another application for the invention for which the earlier relevant application was made, making information available to the public about that invention or that matter or working that invention, but disregarding any application, or the disclosure to the public of matter contained in any application, which is itself to be disregarded for the purposes of section 5(3) above.

Section 7 Right to apply for and obtain a patent.

(1) Any person may make an application for a patent either alone or jointly with another.

(2) A patent for an invention may be granted—

(a) primarily to the inventor or joint inventors;

(b) in preference to the foregoing, to any person or persons who, by virtue of any enactment or rule of law, or any foreign law or treaty or international convention, or by virtue of an enforceable term of any agreement entered into with the inventor before the making of the invention, was or were at the time of the making of the invention entitled to the whole of the property in it (other than equitable interests) in the United Kingdom;

(c) in any event, to the successor or successors in title of any person or persons mentioned in paragraph (a) or (b) above or any person so mentioned and the successor or successors in title of another person so mentioned;

and to no other person.

(3) In this Act “ inventor ” in relation to an invention means the actual deviser of the invention and “ joint inventor ” shall be construed accordingly.

(4) Except so far as the contrary is established, a person who makes an application for a patent shall be taken to be the person who is entitled under subsection (2) above to be granted a patent and two or more persons who make such an application jointly shall be taken to be the persons so entitled.

Section 8 Determination before grant of questions about entitlement to patents, etc.

(1) At any time before a patent has been granted for an invention (whether or not an application has been made for it)—

(a) any person may refer to the comptroller the question whether he is entitled to be granted (alone or with any other persons) a patent for that invention or has or would have any right in or under any patent so granted or any application for such a patent; or

(b) any of two or more co-proprietors of an application for a patent for that invention may so refer the question whether any right in or under the application should be transferred or granted to any other person;

and the comptroller shall determine the question and may make such order as he thinks fit to give effect to the determination.

(2) Where a person refers a question relating to an invention under subsection (1)(a) above to the comptroller after an application for a patent for the invention has been filed and before a patent is granted in pursuance of the application, then, unless the application is refused or withdrawn before the reference is disposed of by the comptroller, the comptroller may, without prejudice to the generality of subsection (1) above and subject to subsection (6) below.—

(a) order that the application shall proceed in the name of that person, either solely or jointly with that of any other applicant, instead of in the name of the applicant or any specified applicant;

(b) where the reference was made by two or more persons, order that the application shall proceed in all their names jointly;

(c) refuse to grant a patent in pursuance of the application or order the application to be amended so as to exclude any of the matter in respect of which the question was referred;

(d) make an order transferring or granting any licence or other right in or under the application and give directions to any person for carrying out the provisions of any such order.

(3) Where a question is referred to the comptroller under subsection (1)(a) above and—

(a) the comptroller orders an application for a patent for the invention to which the question relates to be so amended;

(b) any such application is refused under subsection 2(c) above before the comptroller has disposed of the reference (whether the reference was made before or after the publication of the application); or

(c) any such application is refused under any other provision of this Act or is withdrawn before the comptroller has disposed of the reference (whether the application is refused or withdrawn before or after its publication) ;

the comptroller may order that any person by whom the reference was made may within the prescribed period make a new application for a patent for the whole or part of any matter comprised in the earlier application or, as the case may be, for all or any of the matter excluded from the earlier application, subject in either case to section 76 below, and in either case that, if such a new application is made, it shall be treated as having been filed on the date of filing the earlier application.

(4) Where a person refers a question under subsection (1)(b) above relating to an application, any order under subsection (1) above may contain directions to any person for transferring or granting any right in or under the application.

(5) If any person to whom directions have been given under subsection (2)(d) or (4) above fails to do anything necessary for carrying out any such directions within 14 days after the date of the directions, the comptroller may, on application made to him by any person in whose favour or on whose reference the directions were given, authorise him to do that thing on behalf of the person to whom the directions were given.

(6) Where on a reference under this section it is alleged that, by virtue of any transaction, instrument or event relating to an invention or an application for a patent, any person other than the inventor or the applicant for the patent has become entitled to be granted (whether alone or with any other persons) a patent for the invention or has or would have any right in or under any patent so granted or any application for any such patent, an order shall not be made under subsection (2)(a), (b) or (d) above on the reference unless notice of the reference is given to the applicant and any such person, except any of them who is a party to the reference.

(7) If it appears to the comptroller on a reference of a question under this section that the question involves matters which would more properly be determined by the court, he may decline to deal with it and, without prejudice to the court’s jurisdiction to determine any such question and make a declaration, or any declaratory jurisdiction of the court in Scotland, the court shall have jurisdiction to do so.

(8) No directions shall be given under this section so as to affect the mutual rights or obligations of trustees or of the personal representatives of deceased persons, or their right or obligations as such.

Section 9 Determination after grant of questions referred before grant.

If a question with respect to a patent or application is referred by any person to the comptroller under section 8 above, whether before or after the making of an application for the patent, and is not determined before the time when the application is first in order for a grant of a patent in pursuance of the application, that fact shall not prevent the grant of a patent, but on its grant that person shall be treated as having referred to the comptroller under section 37 below any question mentioned in that section which the comptroller thinks appropriate.

Section 10 Handling of application by joint applicants.

If any dispute arises between joint applicants for a patent whether or in what manner the application should be proceeded with, the comptroller may, on a request made by any of the parties, give such directions as he thinks fit for enabling the application to proceed in the name of one or more of the parties alone or for regulating the manner in which it shall be proceeded with, or for both those purposes, according as the case may require.

Section 11 Effect of transfer of application under s. 8 or 10.

(1) Where an order is made or directions are given under section 8 or 10 above that an application for a patent shall proceed in the name of one or some of the original applicants (whether or not it is also to proceed in the name of some other person), any licences or other rights in or under the application shall, subject to the provisions of the order and any directions under either of those sections, continue in force and be treated as granted by the persons in whose name the application is to proceed.

(2) Where an order is made or directions are given under section 8 above that an application for a patent shall proceed in the name of one or more persons none of whom was an original applicant (on the ground that the original applicant or applicants was or were not entitled to be granted the patent), any licences or other rights in or under the application shall, subject to the provisions of the order and any directions under that section and subject to subsection (3) below, lapse on the registration of that person or those persons as the applicant or applicants or, where the application has not been published, on the making of the order.

(3) If before registration of a reference under section 8 above resulting in the making of any order mentioned in subsection (2) above—

(a) the original applicant or any of the applicants, acting in good faith, worked the invention in question in the United Kingdom or made effective and serious preparations to do so; or

(b) a licensee of the applicant, acting in good faith, worked the invention in the United Kingdom or made effective and serious preparations to do so;

that or those original applicant or applicants or the licensee shall, on making a request within the prescribed period to the person in whose name the application is to proceed, be entitled to be granted a licence (but not an exclusive licence) to continue working or, as the case may be, to work the invention.

(3A) If, before registration of a reference under section 8 above resulting in the making of an order under subsection (3) of that section, the condition in subsection (3)(a) or (b) above is met, the original applicant or any of the applicants or the licensee shall, on making a request within the prescribed period to the new applicant, be entitled to be granted a licence (but not an exclusive licence) to continue working or, as the case may be, to work the invention so far as it is the subject of the new application.

(4) A licence under subsection (3) or (3A) above shall be granted for a reasonable period and on reasonable terms.

(5) Where an order is made as mentioned in subsection (2) or (3A) above, the person in whose name the application is to proceed or, as the case may be, who makes the new application or any person claiming that he is entitled to be granted any such licence may refer to the comptroller the question whether the latter is so entitled and whether any such period is or terms are reasonable, and the comptroller shall determine the question and may, if he considers it appropriate, order the grant of such a licence.

Section 12 Determination of questions about entitlement to foreign and convention patents, etc.

(1) At any time before a patent is granted for an invention in pursuance of an application made under the law of any country other than the United Kingdom or under any treaty or international convention (whether or not that application has been made)—

(a) any person may refer to the comptroller the question whether he is entitled to be granted (alone or with any other persons) any such patent for that invention or has or would have any right in or under any such patent or an application for such a patent; or

(b) any of two or more co-proprietors of an application for such a patent for that invention may so refer the question whether any right in or under the application should be transferred or granted to any other person;

and the comptroller shall determine the question so far as he is able to and may make such order as he thinks fit to give effect to the determination.

(2) If it appears to the comptroller on a reference of a question under this section that the question involves matters which would more properly be determined by the court, he may decline to deal with it and, without prejudice to the court’s jurisdiction to determine any such question and make a declaration, or any declaratory jurisdiction of the court in Scotland, the court shall have jurisdiction to do so.

(3) Subsection (1) above, in its application to a European patent and an application for any such patent, shall have effect subject to section 82 below.

(4) Section 10 above, except so much of it as enables the comptroller to regulate the manner in which an application is to proceed, shall apply to disputes between joint applicants for any such patent as is mentioned in subsection (1) above as it applies to joint applicants for a patent under this Act.

(5) Section 11 above shall apply in relation to—

(a) any orders made under subsection (1) above and any directions given under section 10 above by virtue of subsection (4) above; and

(b) any orders made and directions given by the relevant convention court with respect to a question corresponding to any question which may be determined under subsection (1) above;

as it applies to orders made and directions given apart from this section under section 8 or 10 above.

(6) In the following cases, that is to say—

(a) where an application for a European patent ( UK ) is refused or withdrawn, or the designation of the United Kingdom in the application is withdrawn whether before or , after publication of the application but before a question relating to the right to the patent has been referred to the comptroller under subsection (1) above or before proceedings relating to that right have begun before the relevant convention court;

(b) where an application has been made for a European patent (UK) and on a reference under subsection (1) above or any such proceedings as are mentioned in paragraph (a) above the comptroller, the court or the relevant convention court determines by a final decision (whether before or after publication of the application) that a person other than the applicant has the right to the patent, but that person requests the European Patent Office that the application for the patent should be refused; or

(c) where an international application for a patent (UK) is withdrawn, or the designation of the United Kingdom in the application is withdrawn, whether before or after the making of any reference under subsection (1) above or the publication of the application;

the comptroller may order that any person (other than the applicant) appearing to him to be entitled to be granted a patent under this Act may within the prescribed period make an application for such a patent for the whole or part of any matter comprised in the earlier application (subject, however, to section 76 below) and that if the application for a patent under this Act is filed, it shall be treated as having been filed on the date of filing the earlier application.

(7) In this section—

(a) references to a patent and an application for a patent include respectively references to protection in respect of an invention and an application which, in accordance with the law of any country other than the United Kingdom or any treaty or international convention, is equivalent to an application for a patent or for such protection; and

(b) a decision shall be taken to be final for the purposes of this section when the time for appealing from it has expired without an appeal being brought or, where an appeal is brought, when it is finally disposed of.

Section 13 Mention of inventor.

(1) The inventor or joint inventors of an invention shall have a right to be mentioned as such in any patent granted for the invention and shall also have a right to be so mentioned if possible in any published application for a patent for the invention and, if not so mentioned, a right to be so mentioned in accordance with rules in a prescribed document.

(2) Unless he has already given the Patent Office the information hereinafter mentioned, an applicant for a patent shall within the prescribed period file with the Patent Office a statement—

(a) identifying the person or persons whom he believes to be the inventor or inventors; and

(b) where the applicant is not the sole inventor or the applicants are not the joint inventors, indicating the derivation of his or their right to be granted the patent;

and, if he fails to do so, the application shall be taken to be withdrawn.

(3) Where a person has been mentioned as sole or joint inventor in pursuance of this section, any other person who alleges that the former ought not to have been so mentioned may at any time apply to the comptroller for a certificate to that effect, and the comptroller may issue such a certificate; and if he does so, he shall accordingly rectify any undistributed copies of the patent and of any documents prescribed for the purposes of subsection (1) above.

Section 14 Making of application.

(1) Every application for a patent—

(a) shall be made in the prescribed form and shall be filed at the Patent Office in the prescribed manner; and

(b) shall be accompanied by the fee prescribed for the purposes of this subsection (hereafter in this Act referred to as the filing fee).

(1A) Where an application for a patent is made, the fee prescribed for the purposes of this subsection (“the application fee”) shall be paid not later than the end of the period prescribed for the purposes of section 15(10)(c) below.

(2) Every application for a patent shall contain—

(a) a request for the grant of a patent;

(b) a specification containing a description of the invention, a claim or claims and any drawing referred to in the description or any claim; and

(c) an abstract;

but the foregoing provision shall not prevent an application being initiated by documents complying with section 15(1) below.

(3) The specification of an application shall disclose the invention in a manner which is clear enough and complete enough for the invention to be performed by a person skilled in the art.

(4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(5) The claim or claims shall—

(a) define the matter for which the applicant seeks protection;

(b) be clear and concise;

(c) be supported by the description; and

(d) relate to one invention or to a group of inventions which are so linked as to form a single inventive concept.

(6) Without prejudice to the generality of subsection (5)(d) above, rules may provide for treating two or more inventions as being so linked as to form a single inventive concept for the purposes of this Act.

(7) The purpose of the abstract is to give technical information and on publication it shall not form part of the state of the art by virtue of section 2(3) above, and the comptroller may determine whether the abstract adequately fulfils its purpose and, if it does not, may reframe it so that it does.

(8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(9) An application for a patent may be withdrawn at any time before the patent is granted and any withdrawal of such an application may not be revoked.

(10) Subsection (9) above does not affect the power of the comptroller under section 117(1) below to correct an error or mistake in a withdrawal of an application for a patent.

Section 15 Date of filing application.

(1) Subject to the following provisions of this Act, the date of filing an application for a patent shall be taken to be the earliest date on which documents filed at the Patent Office to initiate the application satisfy the following conditions—

(a) the documents indicate that a patent is sought;

(b) the documents identify the person applying for a patent or contain information sufficient to enable that person to be contacted by the Patent Office; and

(c) the documents contain either—

(i) something which is or appears to be a description of the invention for which a patent is sought; or

(ii) a reference, complying with the relevant requirements of rules, to an earlier relevant application made by the applicant or a predecessor in title of his.

(2) It is immaterial for the purposes of subsection (1)(c)(i) above—

(a) whether the thing is in, or is accompanied by a translation into, a language accepted by the Patent Office in accordance with rules;

(b) whether the thing otherwise complies with the other provisions of this Act and with any relevant rules.

(3) Where documents filed at the Patent Office to initiate an application for a patent satisfy one or more of the conditions specified in subsection (1) above, but do not satisfy all those conditions, the comptroller shall as soon as practicable after the filing of those documents notify the applicant of what else must be filed in order for the application to have a date of filing.

(4) Where documents filed at the Patent Office to initiate an application for a patent satisfy all the conditions specified in subsection (1) above, the comptroller shall as soon as practicable after the filing of the last of those documents notify the applicant of—

(a) the date of filing the application, and

(b) the requirements that must be complied with, and the periods within which they are required by this Act or rules to be complied with, if the application is not to be treated as having been withdrawn.

(5) Subsection (6) below applies where—

(a) an application has a date of filing by virtue of subsection (1) above;

(b) within the prescribed period the applicant files at the Patent Office—

(i) a drawing, or

(ii) part of the description of the invention for which a patent is sought, and

(c) that drawing or that part of the description was missing from the application at the date of filing.

(6) Unless the applicant withdraws the drawing or the part of the description filed under subsection (5)(b) above (“the missing part”) before the end of the prescribed period—

(a) the missing part shall be treated as included in the application; and

(b) the date of filing the application shall be the date on which the missing part is filed at the Patent Office.

(7) Subsection (6)(b) above does not apply if—

(a) on or before the date which is the date of filing the application by virtue of subsection (1) above a declaration is made under section 5(2) above in or in connection with the application;

(b) the applicant makes a request for subsection (6)(b) above not to apply; and

(c) the request complies with the relevant requirements of rules and is made within the prescribed period.

(8) Subsections (6) and (7) above do not affect the power of the comptroller under section 117(1) below to correct an error or mistake.

(9) Where, after an application for a patent has been filed and before the patent is granted—

(a) a new application is filed by the original applicant or his successor in title in accordance with rules in respect of any part of the matter contained in the earlier application, and

(b) the conditions mentioned in subsection (1) above are satisfied in relation to the new application (without the new application contravening section 76 below),

the new application shall be treated as having, as its date of filing, the date of filing the earlier application.

(10) Where an application has a date of filing by virtue of this section, the application shall be treated as having been withdrawn if any of the following applies—

(a) the applicant fails to file at the Patent Office, before the end of the prescribed period, one or more claims and the abstract;

(b) where a reference to an earlier relevant application has been filed as mentioned in subsection (1)(c)(ii) above—

(i) the applicant fails to file at the Patent Office, before the end of the prescribed period, a description of the invention for which the patent is sought;

(ii) the applicant fails to file at the Patent Office, before the end of the prescribed period, a copy of the application referred to, complying with the relevant requirements of rules;

(c) the applicant fails to pay the application fee before the end of the prescribed period;

(d) the applicant fails, before the end of the prescribed period, to make a request for a search under section 17 below and pay the search fee.

(11) In this section “relevant application” has the meaning given by section 5(5) above.

Section 15A Preliminary examination

(1) The comptroller shall refer an application for a patent to an examiner for a preliminary examination if—

(a) the application has a date of filing;

(b) the application has not been withdrawn or treated as withdrawn; and

(c) the application fee has been paid.

(2) On a preliminary examination of an application the examiner shall—

(a) determine whether the application complies with those requirements of this Act and the rules which are designated by the rules as formal requirements for the purposes of this Act; and

(b) determine whether any requirements under section 13(2) or 15(10) above remain to be complied with.

(3) The examiner shall report to the comptroller his determinations under subsection (2) above.

(4) If on the preliminary examination of an application it is found that—

(a) any drawing referred to in the application, or

(b) part of the description of the invention for which the patent is sought,

is missing from the application, then the examiner shall include this finding in his report under subsection (3) above .

(5) Subsections (6) to (8) below apply if a report is made to the comptroller under subsection (3) above that not all the formal requirements have been complied with.

(6) The comptroller shall specify a period during which the applicant shall have the opportunity—

(a) to make observations on the report, and

(b) to amend the application so as to comply with those requirements (subject to section 76 below).

(7) The comptroller may refuse the application if the applicant fails to amend the application as mentioned in subsection (6)(b) above before the end of the period specified by the comptroller under that subsection.

(8) Subsection (7) above does not apply if—

(a) the applicant makes observations as mentioned in subsection (6)(a) above before the end of the period specified by the comptroller under that subsection, and

(b) as a result of the observations, the comptroller is satisfied that the formal requirements have been complied with.

(9) If a report is made to the comptroller under subsection (3) above—

(a) that any requirement of section 13(2) or 15(10) above has not been complied with; or

(b) that a drawing or part of the description of the invention has been found to be missing,

then the comptroller shall notify the applicant accordingly.

Section 16 Publication of application.

(1) Subject to section 22 below and to any prescribed restrictions , where an application has a date of filing, then, as soon as possible after the end of the prescribed period, the comptroller shall, unless the application is withdrawn or refused before preparations for its publication have been completed by the Patent Office, publish it as filed (including not only the original claims but also any amendments of those claims and new claims subsisting immediately before the completion of those preparations) and he may, if so requested by the applicant, publish it as aforesaid during that period, and in either event shall advertise the fact and date of its publication in the journal.

(2) The comptroller may omit from the specification of a published application for a patent any matter—

(a) which in his opinion disparages any person in a way likely to damage him, or

(b) the publication or exploitation of which would in his opinion be generally expected to encourage offensive, immoral or anti-social behaviour.

Section 17 Search.

(1) The comptroller shall refer an application for a patent to an examiner for a search if, and only if—

(a) the comptroller has referred the application to an examiner for a preliminary examination under section 15A(1) above;

(b) the application has not been withdrawn or treated as withdrawn;

(c) before the end of the prescribed period—

(i) the applicant makes a request to the Patent Office in the prescribed form for a search; and

(ii) the fee prescribed for the search (“the search fee”) is paid;

(d) the application includes—

(i) a description of the invention for which a patent is sought; and

(ii) one or more claims; and

(e) the description and each of the claims comply with the requirements of rules as to language.

(2) On a preliminary examination of an application the examiner shall determine whether the application complies with those requirements of this Act and the rules which are designated by the rules as formal requirements for the purposes of this Act and shall report his determination to the comptroller.

(3) If it is reported to the comptroller under subsection (2) above that not all the formal requirements are complied with, he shall give the applicant an opportunity to make observations on the report and to amend the application within a specified period (subject to section 15(5) above) so as to comply with those requirements (subject, however, to section 76 below), and if the applicant fails to do so the comptroller may refuse the application.

(4) Subject to subsections (5) and (6) below, on a search requested under this section, the examiner shall make such investigation as in his opinion is reasonably practicable and necessary for him to identify the documents which he thinks will be needed to decide, on a substantive examination under section 18 below, whether the invention for which a patent is sought is new and involves an inventive step.

(5) On any such search the examiner shall determine whether or not the search would serve any useful purpose on the application as for the time being constituted and—

(a) if he determines that it would serve such a purpose in relation to the whole or part of the application, he shall proceed to conduct the search so far as it would serve such a purpose and shall report on the results of the search to the comptroller; and

(b) if he determines that the search would not serve such a purpose in relation to the whole or part of the application, he shall report accordingly to the comptroller;

and in either event the applicant shall be informed of the examiner’s report.

(6) If it appears to the examiner, either before or on conducting a search under this section, that an application relates to two or more inventions, but that they are not so linked as to form a single inventive concept, he shall initially only conduct a search in relation to the first invention specified in the claims of the application, but may proceed to conduct a search in relation to another invention so specified if the applicant pays the search fee in respect of the application so far as it relates to that other invention.

(7) After a search has been requested under this section for an application the comptroller may at any time refer the application to an examiner for a supplementary search, and subsections (4) and (5) above shall apply in relation to a supplementary search as they apply in relation to any other search under this section.

(8) A reference for a supplementary search in consequence of—

(a) an amendment of the application made by the applicant under section 18(3) or 19(1) below, or

(b) a correction of the application, or of a document filed in connection with the application, under section 117 below,

shall be made only on payment of the prescribed fee, unless the comptroller directs otherwise.

Section 18 Substantive examination and grant or refusal of patent.

(1) Where the conditions imposed by section 17(1) above for the comptroller to refer an application to an examiner for a ... search are satisfied and at the time of the request under that subsection or within the prescribed period—

(a) a request is made by the applicant to the Patent Office in the prescribed form for a substantive examination; and

(b) the prescribed fee is paid for the examination;

the comptroller shall refer the application to an examiner for a substantive examination; and if no such request is made or the prescribed fee is not paid within that period, the application shall be treated as having been withdrawn at the end of that period.

(1A) If the examiner forms the view that a supplementary search under section 17 above is required for which a fee is payable, he shall inform the comptroller, who may decide that the substantive examination should not proceed until the fee is paid; and if he so decides, then unless within such period as he may allow—

(a) the fee is paid, or

(b) the application is amended so as to render the supplementary search unnecessary,

he may refuse the application.

(2) On a substantive examination of an application the examiner shall investigate, to such extent as he considers necessary in view of any examination carried out under section 15A above and search carried out under section 17 above, whether the application complies with the requirements of this Act and the rules and shall determine that question and report his determination to the comptroller.

(3) If the examiner reports that any of those requirements are not complied with, the comptroller shall give the applicant an opportunity within a specified period to make observations on the report and to amend the application so as to comply with those requirements (subject, however, to section 76 below), and if the applicant fails to satisfy the comptroller that those requirements are complied with, or to amend the application so as to comply with them, the comptroller may refuse the application.

(4) If the examiner reports that the application, whether as originally filed or as amended in pursuance of section 15A above, this section or section 19 below, complies with those requirements at any time before the end of the prescribed period, the comptroller shall notify the applicant of that fact and, subject to subsection (5) and sections 19 and 22 below and on payment within the prescribed period of any fee prescribed for the grant, grant him a patent.

(5) Where two or more applications for a patent for the same invention having the same priority date are filed by the same applicant or his successor in title, the comptroller may on that ground refuse to grant a patent in pursuance of more than one of the applications.

Section 19 General power to amend application before grant.

(1) At any time before a patent is granted in pursuance of an application the applicant may, in accordance with the prescribed conditions and subject to section 76 below, amend the application of his own volition.

(2) The comptroller may, without an application being made to him for the purpose, amend the specification and abstract contained in an application for a patent so as to acknowledge a registered trade mark.

Section 20 Failure of application.

(1) If it is not determined that an application for a patent complies before the end of the prescribed period with all the requirements of this Act and the rules, the application shall be treated as having been refused by the comptroller at the end of that period, and section 97 below shall apply accordingly.

(2) If at the end of that period an appeal to the court is pending in respect of the application or the time within which such an appeal could be brought has not expired, that period—

(a) where such an appeal is pending, or is brought within the said time or before the expiration of any extension of that time granted (in the case of a first extension) on an application made within that time or (in the case of a subsequent extension) on an application made before the expiration of the last previous extension, shall be extended until such date as the court may determine;

(b) where no such appeal is pending or is so brought, shall continue until the end of the said time or, if any extension of that time is so granted, until the expiration of the extension or last extension so granted.

Section 20A Reinstatement of applications

(1) Subsection (2) below applies where an application for a patent is refused, or is treated as having been refused or withdrawn, as a direct consequence of a failure by the applicant to comply with a requirement of this Act or rules within a period which is—

(a) set out in this Act or rules, or

(b) specified by the comptroller.

(2) Subject to subsection (3) below, the comptroller shall reinstate the application if, and only if—

(a) the applicant requests him to do so;

(b) the request complies with the relevant requirements of rules; and

(c) he is satisfied that the failure to comply referred to in subsection (1) above was unintentional.

(3) The comptroller shall not reinstate the application if—

(a) an extension remains available under this Act or rules for the period referred to in subsection (1) above; or

(b) the period referred to in subsection (1) above is set out or specified—

(i) in relation to any proceedings before the comptroller;

(ii) for the purposes of section 5(2A)(b) above; or

(iii) for the purposes of a request under this section or section 117B below.

(4) Where the application was made by two or more persons jointly, a request under subsection (2) above may, with the leave of the comptroller, be made by one or more of those persons without joining the others.

(5) If the application has been published under section 16 above, then the comptroller shall publish notice of a request under subsection (2) above in the prescribed manner.

(6) The reinstatement of an application under this section shall be by order.

(7) If an application is reinstated under this section the applicant shall comply with the requirement referred to in subsection (1) above within the further period specified by the comptroller in the order reinstating the application.

(8) The further period specified under subsection (7) above shall not be less than two months.

(9) If the applicant fails to comply with subsection (7) above the application shall be treated as having been withdrawn on the expiry of the period specified under that subsection.

Section 20B Effect of reinstatement under section 20A

(1) The effect of reinstatement under section 20A of an application for a patent is as follows.

(2) Anything done under or in relation to the application during the period between termination and reinstatement shall be treated as valid.

(3) If the application has been published under section 16 above before its termination anything done during that period which would have constituted an infringement of the rights conferred by publication of the application if the termination had not occurred shall be treated as an infringement of those rights—

(a) if done at a time when it was possible for the period referred to in section 20A(1) above to be extended, or

(b) if it was a continuation or repetition of an earlier act infringing those rights.

(4) If the application has been published under section 16 above before its termination and, after the termination and before publication of notice of the request for its reinstatement, a person—

(a) began in good faith to do an act which would have constituted an infringement of the rights conferred by publication of the application if the termination had not taken place, or

(b) made in good faith effective and serious preparations to do such an act,

he has the right to continue to do the act or, as the case may be, to do the act, notwithstanding the reinstatement of the application and the grant of the patent; but this right does not extend to granting a licence to another person to do the act.

(4A) The right conferred by subsection (4) does not become exercisable until the end of the period during which a request may be made under this Act, or under the rules, for an extension of the period referred to in section 20A(1).

(5) If the act was done, or the preparations were made, in the course of a business, the person entitled to the right conferred by subsection (4) above may—

(a) authorise the doing of that act by any partners of his for the time being in that business, and

(b) assign that right, or transmit it on death (or in the case of a body corporate on its dissolution), to any person who acquires that part of the business in the course of which the act was done or the preparations were made.

(6) Where a product is disposed of to another in exercise of a right conferred by subsection (4) or (5) above, that other and any person claiming through him may deal with the product in the same way as if it had been disposed of by the applicant.

(6A) The above provisions apply in relation to the use of a patented invention for the services of the Crown as they apply in relation to infringement of the rights conferred by publication of the application for a patent (or, as the case may be, infringement of the patent).

(7) In this section “termination”, in relation to an application, means—

(a) the refusal of the application, or

(b) the application being treated as having been refused or withdrawn.

Section 21 Observations by third party on patentability.

(1) Where an application for a patent has been published but a patent has not been granted to the applicant, any other person may make observations in writing to the comptroller on the question whether the invention is a patentable invention, stating reasons for the observations, and the comptroller shall consider the observations in accordance with rules.

(2) It is hereby declared that a person does not become a party to any proceedings under this Act before the comptroller by reason only that he makes observations under this section.

Section 22 Information prejudicial to national security or safety of public.

(1) Where an application for a patent is filed in the Patent Office (whether under this Act or any treaty or international convention to which the United Kingdom is a party and whether before or after the appointed day) and it appears to the comptroller that the application contains information of a description notified to him by the Secretary of State as being information the publication of which might be prejudicial to national security , the comptroller may give directions prohibiting or restricting the publication of that information or its communication to any specified person or description of persons.

(2) If it appears to the comptroller that any application so filed contains information the publication of which might be prejudicial to the safety of the public, he may give directions prohibiting or restricting the publication of that information or its communication to any specified person or description of persons until the end of a period not exceeding three months from the end of the period prescribed for the purposes of section 16 above.

(3) While directions are in force under this section with respect to an application—

(a) if the application is made under this Act, it may proceed to the stage where it is in order for the grant of a patent, but it shall not be published and that information shall not be so communicated and no patent shall be granted in pursuance of the application;

(b) if it is an application for a European patent, it shall not be sent to the European Patent Office; and

(c) if it is an international application for a patent, a copy of it shall not be sent to the International Bureau or any international searching authority appointed under the Patent Co-operation Treaty.

(4) Subsection (3)(b) above shall not prevent the comptroller from sending the European Patent Office any information which it is his duty to send that office under the European Patent Convention.

(5) Where the comptroller gives directions under this section with respect to any application, he shall give notice of the application and of the directions to the Secretary of State, and the following provisions shall then have effect:—

(a) the Secretary of State shall, on receipt of the notice, consider whether the publication of the application or the publication or communication of the information in question would be prejudicial to national security or the safety of the public;

(b) if the Secretary of State determines under paragraph (a) above that the publication of the application or the publication or communication of that information would be prejudicial to the safety of the public, he shall notify the comptroller who shall continue his directions under subsection (2) above until they are revoked under paragraph (e) below;

(c) if the Secretary of State determines under paragraph (a) above that the publication of the application or the publication or communication of that information would be prejudicial to national security or the safety of the public, he shall (unless a notice under paragraph (d) below has previously been given by the Secretary of State to the comptroller) reconsider that question during the period of nine months from the date of filing the application and at least once in every subsequent period of twelve months;

(d) if on consideration of an application at any time it appears to the Secretary of State that the publication of the application or the publication or communication of the information contained in it would not, or would no longer, be prejudicial to national security or the safety of the public, he shall give notice to the comptroller to that effect; and

(e) on receipt of such a notice the comptroller shall revoke the directions and may, subject to such conditions (if any) as he thinks fit, extend the time for doing anything required or authorised to be done by or under this Act in connection with the application, whether or not that time has previously expired.

(6) The Secretary of State may do the following for the purpose of enabling him to decide the question referred to in subsection (5)(c) above—

(a) where the application contains information relating to the production or use of atomic energy or research into matters connected with such production or use, he may at any time do one or both of the following, that is to say,

(i) inspect the application and any documents sent to the comptroller in connection with it;

(ii) authorise a government body with responsibility for the production of atomic energy or for research into matters connected with its production or use, or a person appointed by such a government body, to inspect the application and any documents sent to the comptroller in connection with it ; and

(b) in any other case, he may at any time after (or, with the applicant’s consent, before) the end of the period prescribed for the purposes of section 16 above inspect the application and any such documents;

and where a government body or a person appointed by a government body carries out an inspection which the body or person is authorised to carry out under paragraph (a) above, the body or (as the case may be) the person shall report on the inspection to the Secretary of State as soon as practicable.

(7) Where directions have been given under this section in respect of an application for a patent for an invention and, before the directions are revoked, that prescribed period expires and the application is brought in order for the grant of a patent, then—

(a) if while the directions are in force the invention is worked by (or with the written authorisation of or to the order of) a government department, the provisions of sections 55 to 59 below shall apply as if—

(i) the working were use made by section 55;

(ii) the application had been published at the end of that period; and

(iii) a patent had been granted for the invention at the time the application is brought in order for the grant of a patent (taking the terms of the patent to be those of the application as it stood at the time it was so brought in order); and

(b) if it appears to the Secretary of State that the applicant for the patent has suffered hardship by reason of the continuance in force of the directions, the Secretary of State may, with the consent of the Treasury, make such payment (if any) by way of compensation to the applicant as appears to the Secretary of State and the Treasury to be reasonable having regard to the inventive merit and utility of the invention, the purpose for which it is designed and any other relevant circumstances.

(8) Where a patent is granted in pursuance of an application in respect of which directions have been given under this section, no renewal fees shall be payable in respect of any period during which those directions were in force.

(9) A person who fails to comply with any direction under this section shall be liable—

(a) on summary conviction, to a fine not exceeding £1,000; or

(b) on conviction on indictment, to imprisonment for a term not exceeding two years or a fine, or both.

Section 23 Restrictions on applications abroad by United Kingdom residents.

(1) Subject to the following provisions of this section, no person resident in the United Kingdom shall, without written authority granted by the comptroller, file or cause to be filed outside the United Kingdom an application for a patent for an invention if subsection (1A) below applies to that application, unless—

(a) an application for a patent for the same invention has been filed in the Patent Office (whether before, on or after the appointed day) not less than six weeks before the application outside the United Kingdom; and

(b) either no directions have been given under section 22 above in relation to the application in the United Kingdom or all such directions have been revoked.

(1A) This subsection applies to an application if—

(a) the application contains information which relates to military technology or for any other reason publication of the information might be prejudicial to national security; or

(b) the application contains information the publication of which might be prejudicial to the safety of the public.

(2) Subsection (1) above does not apply to an application for a patent for an invention for which an application for a patent has first been filed (whether before or after the appointed day) in a country outside the United Kingdom by a person resident outside the United Kingdom.

(3) A person who files or causes to be filed an application for the grant of a patent in contravention of this section shall be liable—

(a) on summary conviction, to a fine not exceeding £1,000; or

(b) on conviction on indictment, to imprisonment for a term not exceeding two years or a fine, or both.

(3A) A person is liable under subsection (3) above only if—

(a) he knows that filing the application, or causing it to be filed, would contravene this section; or

(b) he is reckless as to whether filing the application, or causing it to be filed, would contravene this section.

(4) In this section—

(a) any reference to an application for a patent includes a reference to an application for other protection for an invention;

(b) any reference to either kind of application is a reference to an application under this Act, under the law of any country other than the United Kingdom or under any treaty or international convention to which the United Kingdom is a party.

Section 24 Publication and certificate of grant.

(1) As soon as practicable after a patent has been granted under this Act the comptroller shall publish in the journal a notice that it has been granted.

(2) The comptroller shall, as soon as practicable after he publishes a notice under subsection (1) above, send the proprietor of the patent a certificate in the prescribed form that the patent has been granted to the proprietor.

(3) The comptroller shall, at the same time as he publishes a notice under subsection (1) above in relation to a patent publish the specification of the patent, the names of the proprietor and (if different) the inventor and any other matters constituting or relating to the patent which in the comptroller’s opinion it is desirable to publish.

(4) Subsection (3) above shall not require the comptroller to identify as inventor a person who has waived his right to be mentioned as inventor in any patent granted for the invention.

Section 25 Term of patent.

(1) A patent granted under this Act shall be treated for the purposes of the following provisions of this Act as having been granted, and shall take effect, on the date on which notice of its grant is published in the journal and, subject to subsection (3) below, shall continue in force until the end of the period of 20 years beginning with the date of filing the application for the patent or with such other date as may be prescribed.

(2) A rule prescribing any such other date under this section shall not be made unless a draft of the rule has been laid before, and approved by resolution of, each House of Parliament.

(3) Where any renewal fee in respect of a patent is not paid by the end of the period prescribed for payment (the “prescribed period”) the patent shall cease to have effect at the end of such day, in the final month of that period, as may be prescribed.

(4) If during the period ending with the sixth month after the month in which the prescribed period ends the renewal fee and any prescribed additional fee are paid, the patent shall be treated for the purposes of this Act as if it had never expired, and accordingly—

(a) anything done under or in relation to it during that further period shall be valid;

(b) an act which would constitute an infringement of it if it had not expired shall constitute such an infringement; and

(c) an act which would constitute the use of the patented invention for the services of the Crown if the patent had not expired shall constitute that use.

(5) Rules shall include provision requiring the comptroller to notify the registered proprietor of a patent that a renewal fee has not been received from him in the Patent Office before the end of the prescribed period and before the framing of the notification.

Section 26 Patent not to be impugned for lack of unity.

No person may in any proceeding object to a patent or to an amendment of a specification of a patent on the ground that the claims contained in the specification of the patent, as they stand or, as the case may be, as proposed to be amended, relate—

(a) to more than one invention, or

(b) to a group of inventions which are not so linked as to form a single inventive concept.

Section 27 General power to amend specification after grant.

(1) Subject to the following provisions of this section and to section 76 below, the comptroller may, on an application made by the proprietor of a patent, allow the specification of the patent to be amended subject to such conditions, if any, as he thinks fit.

(2) No such amendment shall be allowed under this section where there are pending before the court or the comptroller proceedings in which the validity of the patent may be put in issue.

(3) An amendment of a specification of a patent under this section shall have effect and be deemed always to have had effect from the grant of the patent.

(4) The comptroller may, without an application being made to him for the purpose, amend the specification of a patent so as to acknowledge a registered trade-mark.

(5) A person may give notice to the comptroller of his opposition to an application under this section by the proprietor of a patent, and if he does so the comptroller shall notify the proprietor and consider the opposition in deciding whether to grant the application.

(6) In considering whether or not to allow an application under this section, the comptroller shall have regard to any relevant principles applicable under the European Patent Convention.

Section 28 Restoration of lapsed patents.

(1) Where a patent has ceased to have effect by reason of a failure to pay any renewal fee, an application for the restoration of the patent may be made to the comptroller within the prescribed period.

(1A) Rules prescribing that period may contain such transitional provisions and savings as appear to the Secretary of State to be necessary or expedient.

(2) An application under this section may be made by the person who was the proprietor of the patent or by any other person who would have been entitled to the patent if it had not ceased to have effect; and where the patent was held by two or more persons jointly, the application may, with the leave of the comptroller, be made by one or more of them without joining the others.

(2A) Notice of the application shall be published by the comptroller in the prescribed manner.

(3) If the comptroller is satisfied that the failure of the proprietor of the patent—

(a) to pay the renewal fee within the prescribed period; or

(b) to pay that fee and any prescribed additional fee within the period ending with the sixth month after the month in which the prescribed period ended ,

was unintentional, the comptroller shall by order restore the patent on payment of any unpaid renewal fee and any prescribed additional fee.

(4) An order under this section may be made subject to such conditions as the comptroller thinks fit (including a condition requiring compliance with any provisions of the rules relating to registration which have not been complied with), and if the proprietor of the patent does not comply with any condition of such an order the comptroller may revoke the order and give such directions consequential on the revocation as he thinks fit.

(5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Section 28A Effect of order for restoration of patent.

(1) The effect of an order for the restoration of a patent is as follows.

(2) Anything done under or in relation to the patent during the period between expiry and restoration shall be treated as valid.

(3) Anything done during that period which would have constituted an infringement if the patent had not expired shall be treated as an infringement—

(a) if done at a time when it was possible for the patent to be renewed under section 25(4), or

(b) if it was a continuation or repetition of an earlier infringing act.

(4) If after it was no longer possible for the patent to be so renewed, and before publication of notice of the application for restoration, a person—

(a) began in good faith to do an act which would have constituted an infringement of the patent if it had not expired, or

(b) made in good faith effective and serious preparations to do such an act,

he has the right to continue to do the act or, as the case may be, to do the act, notwithstanding the restoration of the patent; but this right does not extend to granting a licence to another person to do the act.

(5) If the act was done, or the preparations were made, in the course of a business, the person entitled to the right conferred by subsection (4) may—

(a) authorise the doing of that act by any partners of his for the time being in that business, and

(b) assign that right, or transmit it on death (or in the case of a body corporate on its dissolution), to any person who acquires that part of the business in the course of which the act was done or the preparations were made.

(6) Where a product is disposed of to another in exercise of the rights conferred by subsection (4) or (5), that other and any person claiming through him may deal with the product in the same way as if it had been disposed of by the registered proprietor of the patent.

(7) The above provisions apply in relation to the use of a patent for the services of the Crown as they apply in relation to infringement of the patent.

Section 29 Surrender of patents.

(1) The proprietor of a patent may at any time by notice given to the comptroller offer to surrender his patent.

(2) A person may give notice to the comptroller of his opposition to the surrender of a patent under this section, and if he does so the comptroller shall notify the proprietor of the patent and determine the question.

(3) If the comptroller is satisfied that the patent may properly be surrendered, he may accept the offer and, as from the date when notice of his acceptance is published in the journal, the patent shall cease to have effect, but no action for infringement shall lie in respect of any act done before that date and no right to compensation shall accrue for any use of the patented invention before that date for the services of the Crown.

Section 30 Nature of, and transactions in, patents and applications for patents.

(1) Any patent or application for a patent is personal property (without being a thing in action), and any patent or any such application and rights in or under it may be transferred, created or granted in accordance with subsections (2) to (7) below.

(2) Subject to section 36(3) below, any patent or any such application, or any right in it, may be assigned or mortgaged.

(3) Any patent or any such application or right shall vest by operation of law in the same way as any other personal property and may be vested by an assent of personal representatives.

(4) Subject to section 36(3) below, a licence may be granted under any patent or any such application for working the invention which is the subject of the patent or the application; and—

(a) to the extent that the licence so provides, a sub-licence may be granted under any such licence and any such licence or sub-licence may be assigned or mortgaged; and

(b) any such licence or sub-licence shall vest by operation of law in the same way as any other personal property and may be vested by an assent of personal representatives.

(5) Subsections (2) to (4) above shall have effect subject to the following provisions of this Act.

(6) Any of the following transactions, that is to say—

(a) any assignment or mortgage of a patent or any such application, or any right in a patent or any such application;

(b) any assent relating to any patent or any such application or right;

shall be void unless it is in writing and is signed by or on behalf of the assignor or mortgagor (or, in the case of an assent or other transaction by a personal representative, by or on behalf of the personal representative) ....

(6A) If a transaction mentioned in subsection (6) above is by a body corporate, references in that subsection to such a transaction being signed by or on behalf of the assignor or mortgagor shall be taken to include references to its being under the seal of the body corporate.

(7) An assignment of a patent or any such application or a share in it, and an exclusive licence granted under any patent or any such application, may confer on the assignee or licensee the right of the assignor or licensor to bring proceedings by virtue of section 61 or 69 below for a previous infringement or to bring proceedings under section 58 below for a previous act.

Section 31 Nature of, and transactions in, patents and applications for patents in Scotland.

(1) Section 30 above shall not extend to Scotland, but instead the following provisions of this section shall apply there.

(2) Any patent or application for a patent, and any right in or under any patent or any such application, is incorporeal moveable property, and the provisions of the following sub-sections and of section 36(3) below shall apply to any grant of licences, assignations and securities in relation to such property.

(3) Any patent or any such application, or any right in it, may be assigned and security may be granted over a patent or any such application or right.

(4) A licence may be granted, under any patent or any application for a patent, for working the invention which is the subject of the patent or the application.

(5) To the extent that any licence granted under subsection (4) above so provides, a sub-licence may be granted under any such licence and any such licence or sub-licence may be assigned and security may be granted over it.

(6) Any assignation or grant of security under this section may be carried out only by writing subscribed in accordance with the Requirements of Writing (Scotland) Act 1995.

(7) An assignation of a patent or application for a patent or a share in it, and an exclusive licence granted under any patent or any such application, may confer on the assignee or licensee the right of the assignor or licensor to bring proceedings by virtue of section 61 or 69 below for a previous infringement or to bring proceedings under section 58 below for a previous act.

Section 32 Register of patents etc.

(1) The comptroller shall maintain the register of patents, which shall comply with rules made by virtue of this section and shall be kept in accordance with such rules.

(2) Without prejudice to any other provision of this Act or rules, rules may make provision with respect to the following matters, including provision imposing requirements as to any of those matters—

(a) the registration of patents and of published applications for patents;

(b) the registration of transactions, instruments or events affecting rights in or under patents and applications;

(ba) the entering on the register of notices concerning opinions issued, or to be issued, under section 74A below;

(c) the furnishing to the comptroller of any prescribed documents or description of documents in connection with any matter which is required to be registered;

(d) the correction of errors in the register and in any documents filed at the Patent Office in connection with registration; and

(e) the publication and advertisement of anything done under this Act or rules in relation to the register.

(3) Notwithstanding anything in subsection (2)( b ) above, no notice of any trust, whether express, implied or constructive, shall be entered in the register and the comptroller shall not be affected by any such notice.

(4) The register need not be kept in documentary form.

(5) Subject to rules, the public shall have a right to inspect the register at the Patent Office at all convenient times.

(6) Any person who applies for a certified copy of an entry in the register or a certified extract from the register shall be entitled to obtain such a copy or extract on payment of a fee prescribed in relation to certified copies and extracts; and rules may provide that any person who applies for an uncertified copy or extract shall be entitled to such a copy or extract on payment of a fee prescribed in relation to uncertified copies and extracts.

(7) Applications under subsection (6) above or rules made by virtue of that subsection shall be made in such manner as may be prescribed.

(8) In relation to any portion of the register kept otherwise than in documentary form—

(a) the right of inspection conferred by subsection (5) above is a right to inspect the material on the register; and

(b) the right to a copy or extract conferred by subsection (6) above or rules is a right to a copy or extract in a form in which it can be taken away and in which it is visible and legible.

(9) ... the register shall be prima facie evidence of anything required or authorised by this Act or rules to be registered and in Scotland shall be sufficient evidence of any such thing.

(10) A certificate purporting to be signed by the comptroller and certifying that any entry which he is authorised by this Act or rules to make has or has not been made, or that any other thing which he is so authorised to do has or has not been done, shall be prima facie evidence, and in Scotland shall be sufficient evidence, of the matters so certified.

(11) Each of the following, that is to say—

(a) a copy of an entry in the register or an extract from the register which is supplied under subsection (6) above;

(b) a copy of any document kept in the Patent Office or an extract from any such document, any specification of a patent or any application for a patent which has been published,

which purports to be a certified copy or a certified extract shall, ... be admitted in evidence without further proof and without production of any original; and in Scotland such evidence shall be sufficient evidence.

(12) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(13) In this section “certified copy” and “certified extract” mean a copy and extract certified by the comptroller and sealed with the seal of the Patent Office.

(14) In this Act, except so far as the context otherwise requires—

“ register ”, as a noun, means the register of patents;

“ register ”, as a verb, means, in relation to any thing, to register or register particulars, or enter notice, of that thing in the register and, in relation to a person, means to enter his name in the register;

and cognate expressions shall be construed accordingly.

Section 33 Effect of registration, etc., on rights in patents.

(1) Any person who claims to have acquired the property in a patent or application for a patent by virtue of any transaction, instrument or event to which this section applies shall be entitled as against any other person who claims to have acquired that property by virtue of an earlier transaction, instrument or event to which this section applies if, at the time of the later transaction, instrument or event—

(a) the earlier transaction, instrument or event was not registered, or

(b) in the case of any application which has not been published, notice of the earlier transaction, instrument or event had not been given to the comptroller, and

(c) in any case, the person claiming under the later transaction, instrument or event, did not know of the earlier transaction, instrument or event.

(2) Subsection (1) above shall apply equally to the case where any person claims to have acquired any right in or under a patent or application for a patent, by virtue of a transaction, instrument or event to which this section applies, and that right is incompatible with any such right acquired by virtue of an earlier transaction, instrument or event to which this section applies.

(3) This section applies to the following transactions, instruments and events:—

(a) the assignment or assignation of a patent or application for a patent, or a right in it;

(b) the mortgage of a patent or application or the granting of security over it;

(c) the grant, assignment or assignation of a licence or sub-licence, or mortgage of a licence or sub-licence, under a patent or application;

(d) the death of the proprietor or one of the proprietors of any such patent or application or any person having a right in or under a patent or application and the vesting by an assent of personal representatives of a patent, application or any such right; and

(e) any order or directions of a court or other competent authority—

(i) transferring a patent or application or any right in or under it to any person; or

(ii) that an application should proceed in the name of any person;

and in either case the event by virtue of which the court or authority had power to make any such order or give any such directions.

(4) Where an application for the registration of a transaction, instrument or event has been made, but the transaction, instrument or event has not been registered, then, for the purposes of subsection (1)(a) above, registration of the application shall be treated as registration of the transaction, instrument or event.

Section 34 Rectification of register.

(1) The court may, on the application of any person aggrieved, order the register to be rectified by the making, or the variation or deletion, of any entry in it.

(2) In proceedings under this section the court may determine any question which it may be necessary or expedient to decide in connection with the rectification of the register.

(3) Rules of court may provide for the notification of any application under this section to the comptroller and for his appearance on the application and for giving effect to any order of the court on the application.

Section 36 Co-ownership of patents and applications for patents.

(1) Where a patent is granted to two or more persons, each of them shall, subject to any agreement to the contrary, be entitled to an equal undivided share in the patent.

(2) Where two or more persons are proprietors of a patent, then, subject to the provisions of this section and subject to any agreement to the contrary—

(a) each of them shall be entitled, by himself or his agents, to do in respect of the invention concerned, for his own benefit and without the consent of or the need to account to the other or others, any act which would apart from this subsection and section 55 below, amount to an infringement of the patent concerned; and

(b) any such act shall not amount to an infringement of the patent concerned.

(3) Subject to the provisions of sections 8 and 12 above and section 37 below and to any agreement for the time being in force, where two or more persons are proprietors of a patent one of them shall not without the consent of the other or others

(a) amend the specification of the patent or apply for such an amendment to be allowed or for the patent to be revoked, or amend the specification of the patent or apply for such an amendment to be allowed or for the patent to be revoked, or

(b) grant a licence under the patent or assign or mortgage a share in the patent or in Scotland cause or permit security to be granted over it.

(4) Subject to the provisions of those sections, where two or more persons are proprietors of a patent, anyone else may supply one of those persons with the means, relating to an essential element of the invention, for putting the invention into effect, and the supply of those means by virtue of this subsection shall not amount to an infringement of the patent.

(5) Where a patented product is disposed of by any of two or more proprietors to any person, that person and any other person claiming through him shall be entitled to deal with the product in the same way as if it had been disposed of by a sole registered proprietor.

(6) Nothing in subsection (1) or (2) above shall affect the mutual rights or obligations of trustees or of the personal representatives of a deceased person, or their rights or obligations as such.

(7) The foregoing provisions of this section shall have effect in relation to an application for a patent which is filed as they have effect in relation to a patent and—

(a) references to a patent and a patent being granted shall accordingly include references respectively to any such application and to the application being filed; and

(b) the reference in subsection (5) above to a patented product shall be construed accordingly.

Section 37 Determination of right to patent after grant.

(1) After a patent has been granted for an invention any person having or claiming a proprietary interest in or under the patent may refer to the comptroller the question—

(a) who is or are the true proprietor or proprietors of the patent,

(b) whether the patent should have been granted to the person or persons to whom it was granted, or

(c) whether any right in or under the patent should be transferred or granted to any other person or persons;

and the comptroller shall determine the question and make such order as he thinks fit to give effect to the determination.

(2) Without prejudice to the generality of subsection (1) above, an order under that subsection may contain provision—

(a) directing that the person by whom the reference is made under that subsection shall be included (whether or not to the exclusion of any other person) among the persons registered as proprietors of the patent;

(b) directing the registration of a transaction, instrument or event by virtue of which that person has acquired any right in or under the patent;

(c) granting any licence or other right in or under the patent;

(d) directing the proprietor of the patent or any person having any right in or under the patent to do anything specified in the order as necessary to carry out the other provisions of the order.

(3) If any person to whom directions have been given under subsection (2)(d) above fails to do anything necessary for carrying out any such directions within 14 days after the date of the order containing the directions, the comptroller may, on application made to him by any person in whose favour or on whose reference the order containing the directions was made, authorise him to do that thing on behalf of the person to whom the directions were given.

(4) Where the comptroller finds on a reference under this section that the patent was granted to a person not entitled to be granted that patent (whether alone or with other persons) and on an application made under section 72 below makes an order on that ground for the conditional or unconditional revocation of the patent, the comptroller may order that the person by whom the application was made or his successor in title may, subject to section 76 below, make a new application for a patent—

(a) in the case of unconditional revocation, for the whole of the matter comprised in the specification of that patent; and

(b) in the case of conditional revocation, for the matter which in the opinion of the comptroller should be excluded from that specification by amendment under section 75 below;

and where such a new application is made, it shall be treated as having been filed on the date of filing the application for the patent to which the reference relates.

(5) On any such reference no order shall be made under this section transferring the patent to which the reference relates on the ground that the patent was granted to a person not so entitled, and no order shall be made under subsection (4) above on that ground, if the reference was made after the second anniversary of the date of the grant, unless it is shown that any person registered as a proprietor of the patent knew at the time of the grant or, as the case may be, of the transfer of the patent to him that he was not entitled to the patent.

(6) An order under this section shall not be so made as to affect the mutual rights or obligations of trustees or of the personal representatives of a deceased person, or their rights or obligations as such.

(7) Where a question is referred to the comptroller under this section an order shall not be made by virtue of subsection (2) or under subsection (4) above on the reference unless notice of the reference is given to all persons registered as proprietor of the patent or as having a right in or under the patent, except those who are parties to the reference.

(8) If it appears to the comptroller on a reference under this section that the question referred to him would more properly be determined by the court, he may decline to deal with it and, without prejudice to the court’s jurisdiction to determine any such question and make a declaration, or any declaratory jurisdiction of the court in Scotland, the court shall have jurisdiction to do so.

(9) The court shall not in the exercise of any such declaratory jurisdiction determine a question whether a patent was granted to a person not entitled to be granted the patent if the proceedings in which the jurisdiction is invoked were commenced after the second anniversary of the date of the grant of the patent, unless it is shown that any person registered as a proprietor of the patent knew at the time of the grant or, as the case may be, of the transfer of the patent to him that he was not entitled to the patent.

Section 38 Effect of transfer of patent under s. 37.

(1) Where an order is made under section 37 above that a patent shall be transferred from any person or persons (the old proprietor or proprietors) to one or more persons (whether or not including an old proprietor), then, except in a case falling within subsection (2) below, any licences or other rights granted or created by the old proprietor or proprietors shall, subject to section 33 above and to the provisions of the order, continue in force and be treated as granted by the person or persons to whom the patent is ordered to be transferred (the new proprietor or proprietors).

(2) Where an order is so made that a patent shall be transferred from the old proprietor or proprietors to one or more persons none of whom was an old proprietor (on the ground that the patent was granted to a person not entitled to be granted the patent), any licences or other rights in or under the patent shall, subject to the provisions of the order and subsection (3) below, lapse on the registration of that person or those persons as the new proprietor or proprietors of the patent.

(3) Where an order is so made that a patent shall be transferred as mentioned in subsection (2) above or that a person other than an old proprietor may make a new application for a patent and before the reference of the question under that section resulting in the making of any such order is registered, the old proprietor or proprietors or a licensee of the patent, acting in good faith, worked the invention in question in the United Kingdom or made effective and serious preparations to do so, the old proprietor or proprietors or the licensee shall, on making a request to the new proprietor or proprietors or, as the case may be, the new applicant within the prescribed period, be entitled to be granted a licence (but not an exclusive licence) to continue working or, as the case may be, to work the invention, so far as it is the subject of the new application.

(4) Any such licence shall be granted for a reasonable period and on reasonable terms.

(5) The new proprietor or proprietors of the patent or, as the case may be, the new applicant or any person claiming that he is entitled to be granted any such licence may refer to the comptroller the question whether that person is so entitled and whether any such period is or terms are reasonable, and the comptroller shall determine the question and may, if he considers it appropriate, order the grant of such a licence.

Section 39 Right to employees’ inventions.

(1) Notwithstanding anything in any rule of law, an invention made by an employee shall, as between him and his employer, be taken to belong to his employer for the purposes of this Act and all other purposes if—

(a) it was made in the course of the normal duties of the employee or in the course of duties falling outside his normal duties, but specifically assigned to him, and the circumstances in either case were such that an invention might reasonably be expected to result from the carrying out of his duties; or

(b) the invention was made in the course of the duties of the employee and, at the time of making the invention, because of the nature of his duties and the particular responsibilities arising from the nature of his duties he had a special obligation to further the interests of the employer’s undertaking.

(2) Any other invention made by an employee shall, as between him and his employer, be taken for those purposes to belong to the employee.

(3) Where by virtue of this section an invention belongs, as between him and his employer, to an employee, nothing done—

(a) by or on behalf of the employee or any person claiming under him for the purposes of pursuing an application for a patent, or

(b) by any person for the purpose of performing or working the invention,

shall be taken to infringe any copyright or design right to which, as between him and his employer, his employer is entitled in any model or document relating to the invention.

Section 40 Compensation of employees for certain inventions.

(1) Where it appears to the court or the comptroller on an application made by an employee within the prescribed period that—

(a) the employee has made an invention belonging to the employer for which a patent has been granted,

(b) having regard among other things to the size and nature of the employer’s undertaking, the invention or the patent for it (or the combination of both) is of outstanding benefit to the employer, and

(c) by reason of those facts it is just that the employee should be awarded compensation to be paid by the employer,

the court or the comptroller may award him such compensation of an amount determined under section 41 below.

(2) Where it appears to the court or the comptroller on an application made by an employee within the prescribed period that—

(a) a patent has been granted for an invention made by and belonging to the employee;

(b) his rights in the invention, or in any patent or application for a patent for the invention, have since the appointed day been assigned to the employer or an exclusive licence under the patent or application has since the appointed day been granted to the employer;

(c) the benefit derived by the employee from the contract of assignment, assignation or grant or any ancillary contract (“ the relevant contract ”) is inadequate in relation to the benefit derived by the employer from the invention or the patent for it (or both) ; and

(d) by reason of those facts it is just that the employee should be awarded compensation to be paid by the employer in addition to the benefit derived from the relevant contract;

the court or the comptroller may award him such compensation of an amount determined under section 41 below.

(3) Subsections (1) and (2) above shall not apply to the invention of an employee where a relevant collective agreement provides for the payment of compensation in respect of inventions of the same description as that invention to employees of the same description as that employee.

(4) Subsection (2) above shall have effect notwithstanding anything in the relevant contract or any agreement applicable to the invention (other than any such collective agreement).

(5) If it appears to the comptroller on an application under this section that the application involves matters which would more properly be determined by the court, he may decline to deal with it.

(6) In this section—

“ the prescribed period ”, in relation to proceedings before the court, means the period prescribed by rules of court, and

“ relevant collective agreement ” means a collective agreement within the meaning of the Trade Union and Labour Relations (Consolidation) Act 1992 , made by or on behalf of a trade union to which the employee belongs, and by the employer or an employers’ association to which the employer belongs which is in force at the time of the making of the invention.

(7) References in this section to an invention belonging to an employer or employee are references to it so belonging as between the employer and the employee.

Section 41 Amount of compensation.

(1) An award of compensation to an employee under section 40(1) or (2) above shall be such as will secure for the employee a fair share (having regard to all the circumstances) of the benefit which the employer has derived, or may reasonably be expected to derive, from any of the following—

(a) the invention in question;

(b) the patent for the invention;

(c) the assignment, assignation or grant of—

(i) the property or any right in the invention, or

(ii) the property in, or any right in or under, an application for the patent,

to a person connected with the employer.

(2) For the purposes of subsection (1) above the amount of any benefit derived or expected to be derived by an employer from the assignment, assignation or grant of—

(a) the property in, or any right in or under, a patent for the invention or an application for such a patent; or

(b) the property or any right in the invention;

to a person connected with him shall be taken to be the amount which could reasonably be expected to be so derived by the employer if that person had not been connected with him.

(3) Where the Crown , United Kingdom Research and Innovation or a Research Council in its capacity as employer assigns or grants the property in, or any right in or under, an invention, patent or application for a patent to a body having among its functions that of developing or exploiting inventions resulting from public research and does so for no consideration or only a nominal consideration, any benefit derived from the invention, patent or application by that body shall be treated for the purposes of the foregoing provisions of this section as so derived by the Crown , United Kingdom Research and Innovation or the Research Council (as the case may be) .

In this subsection “ Research Council ” means a body which is a Research Council for the purposes of the Science and Technology Act 1965 ...

(4) In determining the fair share of the benefit to be secured for an employee in respect of ... an invention which has always belonged to an employer, the court or the comptroller shall, among other things, take the following matters into account, that is to say—

(a) the nature of the employee’s duties, his remuneration and the other advantages he derives or has derived from his employment or has derived in relation to the invention under this Act;

(b) the effort and skill which the employee has devoted to making the invention;

(c) the effort and skill which any other person has devoted to making the invention jointly with the employee concerned, and the advice and other assistance contributed by any other employee who is not a joint inventor of the invention; and

(d) the contribution made by the employer to the making, developing and working of the invention by the provision of advice, facilities and other assistance, by the provision of opportunities and by his managerial and commercial skill and activities.

(5) In determining the fair share of the benefit to be secured for an employee in respect of ... an invention which originally belonged to him, the court or the comptroller shall, among other things, take the following matters into account, that is to say—

(a) any conditions in a licence or licences granted under this Act or otherwise in respect of the invention or the patent for it ;

(b) the extent to which the invention was made jointly by the employee with any other person; and

(c) the contribution made by the employer to the making, developing and working of the invention as mentioned in subsection (4)(d) above.

(6) Any order for the payment of compensation under section 40 above may be an order for the payment of a lump sum or for periodical payment, or both.

(7) Without prejudice to section 12 or section 14 of the Interpretation Act 1978 , the refusal of the court or the comptroller to make any such order on an application made by an employee under section 40 above shall not prevent a further application being made under that section by him or any successor in title of his.

(8) Where the court or the comptroller has made any such order, the court or he may on the application of either the employer or the employee vary or discharge it or suspend any provision of the order and revive any provision so suspended, and section 40(5) above shall apply to the application as it applies to an application under that section.

(9) In England and Wales any sums awarded by the comptroller under section 40 above shall, if the county court so orders, be recoverable under section 85 of the County Courts Act 1984 or otherwise as if they were payable under an order of that court.

(10) In Scotland an order made under section 40 above by the comptroller for the payment of any sums may be enforced in like manner as an extract registered decree arbitral bearing a warrant for execution issued by the sheriff court of any sheriffdom in Scotland. .

(11) In Northern Ireland an order made under section 40 above by the comptroller for the payment of any sums may be enforced as if it were a money judgment.

Section 42 Enforceability of contracts relating to employees’ inventions.

(1) This section applies to any contract (whenever made) relating to inventions made by an employee, being a contract entered into by him—

(a) with the employer (alone or with another); or

(b) with some other person at the request of the employer or in pursuance of the employee’s contract of employment.

(2) Any term in a contract to which this section applies which diminishes the employee’s rights in inventions of any description made by him after the appointed day and the date of the contract, or in or under patents for those inventions or applications for such patents, shall be unenforceable against him to the extent that it diminishes his rights in an invention of that description so made, or in or under a patent for such an invention or an application for any such patent.

(3) Subsection (2) above shall not be construed as derogating from any duty of confidentiality owed to his employer by an employee by virtue of any rule of law or otherwise.

(4) This section applies to any arrangement made with a Crown employee by or on behalf of the Crown as his employer as it applies to any contract made between an employee and an employer other than the Crown, and for the purposes of this section “ Crown employee ” means a person employed under or for the purposes of a government department or any officer or body exercising on behalf of the Crown functions conferred by any enactment or a person serving in the naval, military or air forces of the Crown.

Section 43 Supplementary.

(1) Sections 39 to 42 above shall not apply to an invention made before the appointed day.

(2) Sections 39 to 42 above shall not apply to an invention made by an employee unless at the time he made the invention one of the following conditions was satisfied in his case, that is to say—

(a) he was mainly employed in the United Kingdom; or

(b) he was not mainly employed anywhere or his place of employment could not be determined, but his employer had a place of business in the United Kingdom to which the employee was attached, whether or not he was also attached elsewhere.

(3) In sections 39 to 42 above and this section, except so far as the context otherwise requires, references to the making of an invention by an employee are references to his making it alone or jointly with any other person, but do not include references to his merely contributing advice or other assistance in the making of an invention by another employee.

(4) Any references in sections 39 to 42 above to a patent and to a patent being granted are respectively references to a patent or other protection and to its being granted whether under the law of the United Kingdom or the law in force in any other country or under any treaty or international convention.

(5) For the purposes of sections 40 and 41 above the benefit derived or expected to be derived by an employer from an invention or patent shall, where he dies before any award is made under section 40 above in respect of it , include any benefit derived or expected to be derived from it by his personal representatives or by any person in whom it was vested by their assent.

(5A) For the purposes of sections 40 and 41 above the benefit derived or expected to be derived by an employer from an invention shall not include any benefit derived or expected to be derived from the invention after the patent for it has expired or has been surrendered or revoked.

(6) Where an employee dies before an award is made under section 40 above in respect of a patented invention made by him, his personal representatives or their successors in title may exercise his right to make or proceed with an application for compensation under subsection (1) or (2) of that section.

(7) In sections 40 and 41 above and this section “ benefit ” means benefit in money or money’s worth.

(8) Section 533 of the Income and Corporation Taxes Act 1970 (definition of connected persons) shall apply for determining for the purposes of section 41(2) above whether one person is connected with another as it applies for determining that question for the purposes of the Tax Acts.

Section 45 Determination of parts of certain contracts.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Section 46 Patentee’s application for entry in register that licences are available as of right.

(1) At any time after the grant of a patent its proprietor may apply to the comptroller for an entry to be made in the register to the effect that licences under the patent are to be available as of right.

(2) Where such an application is made, the comptroller shall give notice of the application to any person registered as having a right in or under the patent and, if satisfied that the proprietor of the patent is not precluded by contract from granting licences under the patent, shall make that entry.

(3) Where such an entry is made in respect of a patent—

(a) any person shall, at any time after the entry is made, be entitled as of right to a licence under the patent on such terms as may be settled by agreement or, in default of agreement, by the comptroller on the application of the proprietor of the patent or the person requiring the licence;

(b) the comptroller may, on the application of the holder of any licence granted under the patent before the entry was made, order the licence to be exchanged for a licence of right on terms so settled;

(c) if in proceedings for infringement of the patent (otherwise than by the importation of any article from a country which is not a member State of the European Economic Community ) the defendant or defender undertakes to take a licence on such terms, no injunction or interdict shall be granted against him and the amount (if any) recoverable against him by way of damages shall not exceed double the amount which would have been payable by him as licensee if such a licence on those terms had been granted before the earliest infringement;

(d) if the expiry date in relation to a renewal fee falls after the date of the entry, that fee shall be half the fee which would be payable had the entry not been made.

(3A) An undertaking under subsection (3)(c) above may be given at any time before final order in the proceedings, without any admission of liability.

(3B) For the purposes of subsection (3)(d) above the expiry date in relation to a renewal fee is the day at the end of which, by virtue of section 25(3) above, the patent in question ceases to have effect if that fee is not paid.

(4) The licensee under a licence of right may (unless, in the case of a licence the terms of which are settled by agreement, the licence otherwise expressly provides) request the proprietor of the patent to take proceedings to prevent any infringement of the patent; and if the proprietor refuses or neglects to do so within two months after being so requested, the licensee may institute proceedings for the infringement in his own name as if he were proprietor, making the proprietor a defendant or defender.

(5) A proprietor so added as defendant or defender shall not be liable for any costs or expenses unless he enters an appearance and takes part in the proceedings.

Section 47 Cancellation of entry made under s. 46.

(1) At any time after an entry has been made under section 46 above in respect of a patent, the proprietor of the patent may apply to the comptroller for cancellation of the entry.

(2) Where such an application is made and the balance paid of all renewal fees which would have been payable if the entry had not been made, the comptroller may cancel the entry, if satisfied that there is no existing licence under the patent or that all licensees under the patent consent to the application.

(3) Within the prescribed period after an entry has been made under section 46 above in respect of a patent, any person who claims that the proprietor of the patent is, and was at the time of the entry, precluded by a contract in which the claimant is interested from granting licences under the patent may apply to the comptroller for cancellation of the entry.

(4) Where the comptroller is satisfied, on an application under subsection (3) above, that the proprietor of the patent is and was so precluded, he shall cancel the entry; and the proprietor shall then be liable to pay, within a period specified by the comptroller, a sum equal to the balance of all renewal fees which would have been payable if the entry had not been made, and the patent shall cease to have effect at the expiration of that period if that sum is not so paid.

(5) Where an entry is cancelled under this section, the rights and liabilities of the proprietor of the patent shall afterwards be the same as if the entry had not been made.

(6) Where an application has been made under this section, then—

(a) in the case of an application under subsection (1) above, any person, and

(b) in the case of an application under subsection (3) above, the proprietor of the patent,

may within the prescribed period give notice to the comptroller of opposition to the cancellation; and the comptroller shall, in considering the application, determine whether the opposition is justified.