In this case, you can directly consult and complain to the agency that announced the patent authorization, such as the State Intellectual Property Office of China, to inquire about the issuance of the patent certificate, and report your problems and dissatisfaction with the handling. . In addition, you can also check the relevant policies and regulations through the website or platform of the patent announcement agency, understand the specific process and time for the issuance of certificates, and require the agency to issue notices or reasons in accordance with regulations. If you feel that your complaint or consultation cannot solve the problem, you may also consider consulting a professional intellectual property lawyer for more specific advice and guidance.