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RA 166 Section 4

Registration of trade-marks, trade-names and service-marks.

Section 4

SEC. 4. Registration of trade-marks, trade-names and service-marks.—The owner of a trade-mark, trade-name or service-mark used to distinguish his goods, business or services from the goods, business or services of others shall have the right to register the same, unless it: Consists of or comprises immoral, deceptive or scandalous matter; or matter which may disparage or falsely suggest a connection with persons, living or dead, institutions, beliefs, or national symbols, or bring them into contempt or disrepute; Consists of or comprises the flag or coat of arms or other insignia of the Philippines or any of its political subdivisions, or of any foreign nation, or any simulation thereof; Consists of or comprises a name, portrait, or signature identifying a particular living individual except by his written consent, or the name, signature, or portrait of a deceased President of the Philippines, during the life of his widow, if any, except by the written consent of the widow; Consists of or comprises a mark or trade-name which so resembles a mark or trade-name registered in the Philippines or a mark or trade-name previously used in the Philippines by another and not abandoned, as to be likely, when applied to or used in connection with the goods, business or services of the applicant, to cause confusion or mistake or to deceive purchasers; or Consists of a mark or trade-name which, when applied to or used in connection with the goods, business or services of the applicant is merely descriptive or deceptively misdescriptive of them, or when applied to or used in connection with the goods, business or services of the applicant is primarily geographically descriptive or deceptively misdescriptive of them, or is primarily merely a surname. Except as expressly excluded in paragraphs (a), (b), (c) and (d) of this section, nothing herein shall prevent the registration of a mark or trade-name used by the applicant which has become distinctive of the applicant's goods, business or services. The Director may accept as prima facie evidence that the mark or trade-name has become distinctive, as applied to or used in connection with the applicant's goods, business or services, proof of substantially exclusive and continuous use thereof as a mark or trade-name by the applicant in connection with the sale of goods, business or services for the five years next preceding the date of the filing of the application for its registration.

Read the full instrument → · Open the chapter this section belongs to: CHAPTER II—Registration of Marks and Trade-Names →

Other provisions in CHAPTER II—Registration of Marks and Trade-Names

Compiled from an official source version. Later amendments or repeals may not be reflected; the official text prevails. · Read the official text ↗ · Data as of 2026-07-04

CitationRA 166 Section 4 (LawPlayer, data as of 2026-07-04)

Source: Supreme Court E-Library, Republic of the Philippines. Philippine laws are public documents (works of the government).

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