The term of patent right refers to the time when the legal term of patent right expires. From the date of the announcement of the authorization of the patent right, if the patent right is not terminated for other reasons, the patent right will be terminated on the date when the patent authority expires. According to the provisions of the patent law, the term of invention patent is 2 years; The term of utility model patent and design patent is 1 years, counting from the date of application. Although the patent term stipulated in the patent law is counted from the date of application, this is only the starting point for calculating the patent term, which does not mean that the patent right will be effective from the date of application. Since the patent application must be examined by the Patent Office before it can be granted a patent right, it will take some time from the date of filing to the time when the Patent Office makes an authorization announcement on the patent application. In this way, the patentee of the invention patent can actually get legal protection for less than 2 years, and the patentee of the utility model and design patent can actually get legal protection for less than 1 years.