What are the restrictions of patent law on patent right?

The limitation of patent right is: 1, the term of invention patent right is 20 years, the term of utility model patent right is 10 years, and the term of design patent right is 15 years. Upon the expiration of the above-mentioned period, the patent right shall be terminated and may not be extended; 2. In case of emergency or extraordinary circumstances, or for public interests or health purposes, the state has the right to grant a compulsory license to the corresponding invention patent or utility model patent; 3. Other restrictions.

legal ground

In Article 42 of the Patent Law of People's Republic of China (PRC), the patent right for invention is 20 years, the patent right for utility model is 10 year, and the patent right for design is 15 year, all of which are counted from the date of application. Article 54 In case of national emergency or extraordinary circumstances, or for the purpose of public interest, the patent administration department in the State Council may grant a compulsory license to exploit a patent for invention or utility model. Article 55 For the purpose of public health, the patent administration department of the State Council may grant compulsory licenses for the manufacture and export of patented drugs to countries or regions that meet the requirements of relevant international treaties to which People's Republic of China (PRC) is a party.