How long is the confidentiality period of the invention patent right?

The term of the patent right for confidential inventions shall be twenty years. According to the relevant laws and regulations, the term of the invention patent right is 20 years, and the term of the design patent right is 15 years, all of which are calculated from the application date. The patent right terminates after the expiration of the time limit.

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.