Patent Act Article 41

Effect of laying open an applicationAn invention patent applicant may, after the publication of an invention patent application, claim appropriate compensation against the exploiter who, having been given a written notice by the applicant in respect of the contents of the invention after the laying-open of the invention patent application, continues to commercially exploit the invention after receiving the notice and prior to the publication of the said application.The claim referred to in the preceding paragraph may also be made against a person who is fully aware that the patent application for invention has been laid open but continues to commercially exploit the invention prior to its publication.The right to claim compensation as provided in the preceding two paragraphs does not affect the exercise of other rights. However, where an applicant having filed a patent application for invention and a patent application for utility model pursuant to Article 32 of this Act has been granted the utility model patent, the claim against such exploiter shall only be made based either on the right to claim compensation or on the utility model patent right.The right to claim compensation as set forth in Paragraphs 1 and 2 shall become extinguished if not exercised within two (2) years after the publication date of the said invention patent.