The "Patent Law of the People's Republic of China" was adopted by the Fourth Meeting of the Standing Committee of the Sixth National People's Congress of the People's Republic of China on March 12, 1984. Effective from April 1, 1985. It has been revised four times in 1992, 2000, 2008, and 2020 respectively, which has played an important role in encouraging and protecting inventions and promoting innovation. The latest revision of the Patent Law mainly includes three key aspects: 1. Strengthening the protection of the legitimate rights and interests of patentees, including increasing compensation for patent infringement and stipulating one to five times punitive damages for intentional infringement. , increase the upper limit of statutory compensation to five million, improve the burden of proof, improve patent administrative protection, add the principle of good faith, add patent term compensation system and relevant provisions on the early resolution procedure of drug patent disputes, etc. 2. Promote the implementation and use of patents, including improving the service invention system, adding a patent open licensing system, and strengthening patent conversion services. 3. Improve the patent authorization system, including further improving the system related to design protection, increasing the applicable circumstances of the novelty grace period, and improving the patent right evaluation reporting system.