The annual fee is paid after the patent is granted. The annual fee is the fee paid to maintain the patent rights. Authorization is after the patent has been reviewed by the Patent Office. The annual fee is paid after the patent is authorized. When the annual fee is paid, the patent is authorized. However, there is a difference between authorization and obtaining a patent certificate. Patent authorization is an important step in the patent application process. Status, only patents that have been authorized can get a patent certificate, and patents that have not been successfully authorized have failed applications. Therefore, only patents that pass the review will be authorized, and the authorization rate of each patent is not 100%. , and invention patent authorization is more difficult. According to the application requirements, the annual fee will be paid only after authorization.