Open the computer browser, search or enter the website to enter the official website of China National Intellectual Property Administration. Website:;
After entering the website, click "Patent Examination Information Inquiry" under the patent column on the right side of the webpage to enter the "Patent Examination Information Inquiry in China and Many Countries" page;
Click "Public User Registration" under "Public Inquiry" and fill in the corresponding information;
After the registration is completed, return to the "China and Transnational Patent Examination Information Inquiry" page, log in to the "Public Inquiry" on the right, fill in the account number and password, click the random verification code to log in, and enter the following page;
Click "Agree to the above statement" and "Continue" to enter the "Case Information Inquiry" page, and enter any information and verification code/patent number in the "Application Number". ","name of invention "or" applicant ";
Click on "Expense Information" at the bottom left. If the following legend appears ("payment information" is blank, and there is only one application fee under "payment information"), it means that it is under review and is not authorized;
If the annual fee and stamp duty information ("Fee Payable Information" or "Fee Paid Information") appears under the legend below, it means that through authorization, a formal patent certificate can be obtained after paying the annual fee and stamp duty for a period of time as required.