The patent has been authorized, but the company has not paid the patent fee.

You can protect your legitimate rights and interests through court prosecution. 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. How to stipulate that the term of invention patent is 20 years, and the term of utility model patent and design patent is 10 years, counting from the date of application?