Legal analysis: the term of patent right refers to the legal term and termination time of patent right stipulated in patent law. From the date of authorization announcement to the date of expiration of the patent right, the patent right shall be protected by law. According to the provisions of the patent law, the term of patent right is calculated from the date of application, and the term of invention patent is 20 years; The term of utility model patent and design patent is 10 year.
Legal basis: According to Article 42 of the Patent Law of People's Republic of China (PRC), the term of invention patent is 20 years, and the term of utility model patent and design patent is 10 year, all of which are counted from the date of application.