How long is the duration of patent protection?

Term of patent protection: the term of utility model patent is 10 year, the term of design patent is 15 year, and the term of invention patent is 20 years, counting from the date of application. And within the legal protection period of the patent, the patentee shall pay the corresponding annual fee according to law.

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 43 The patentee shall pay the annual fee from the year when the patent right is granted. Article 44 In any of the following circumstances, the patent right shall be terminated before the expiration of the time limit: (1) Failing to pay the annual fee as required; (2) The patentee waives his patent right in writing. Where the patent right is terminated before the expiration of the time limit, it shall be registered and announced by the patent administration department of the State Council.