The term of invention patent rights is twenty years. According to relevant legal provisions, the validity period of patent rights for inventions and creations is calculated from the date of application. The term of utility model patent rights is ten years, the term of design patent rights is fifteen years, and the term of invention patent rights is twenty years.
Legal basis:
(1) Article 42 of the "Patent Law of the People's Republic of China" stipulates that the term of invention patent rights is twenty years. The term of patent rights and design patent rights is ten years, calculated from the date of application.
(2) Article 43 of the "Patent Law of the People's Republic of China" stipulates that the patentee shall pay annual fees starting from the year when the patent right is granted.