Second, the network query
The payer logs on the website of China National Intellectual Property Administration government, clicks on "Government Service Platform", selects "Patent Search Query", and enters "Patent Examination Information Query of China and Many Countries" to inquire about the fees payable and the fees paid.
Third, on-site inquiry
The reception hall of China National Intellectual Property Administration Patent Office is equipped with a fee inquiry desk, which can inquire about the types, amount and payment period of the fees payable on the spot on the day of payment.
Fourth, the client query
If you entrust patent management to a patent agency, you can consult the person in charge of the agency. You can also visit the website of the institution. For example: