The protection period of Chinese invention patents is twenty years. According to relevant legal provisions, the term of invention patent rights is twenty years, and the term of utility model patent rights and design patent rights is ten years. And the aforementioned rights period is calculated from the date of application.
Legal Basis
Article 42 of the "Patent Law of the People's Republic of China" that took effect on June 1, 2021
Invention Patent Rights The term of utility model patent rights and design patent rights is ten years, both calculated from the date of application.
Article 43
The patentee shall pay annual fees starting from the year when the patent right is granted.
Article 44
Patent rights shall be terminated before expiration in any of the following circumstances:
(1) Failure to pay annual fees in accordance with regulations
(2) The patentee has given up its patent rights in a written statement.
If the patent right is terminated before the expiration of the term, it shall be registered and announced by the patent administration department of the State Council.