Intellectual Property Code
Section 77. Infringement Action by a Foreign National. - Any foreign national or juridical entity who meets the requirements of Section 3 and not engaged in business in the Philippines, to which a patent has been granted or assigned under this Act, may bring an action for infringement of patent, whether or not it is licensed to do business in the Philippines under existing law. (Sec. 41-A, R.A. No. 165a)