Patentable Inventions.
Section 21
SEC. 21. Patentable Inventions. – Any technical solution of a problem in any field of human activity which is new, involves an inventive step and is industrially applicable shall be patentable. It may be, or may relate to, a product, or process, or an improvement of any of the foregoing. (Sec. 7, R.A. No. 165a)