National application: the payer can inquire about the payment information of five or less patents by telephone. The telephone number is 010-62356655, and the application number or patent number should be provided when inquiring.
International stage of PCT international application: 0 10—62088476
National phase of PCT international application: 0 10—62088300
(2) Network query
Payers can also log on to the government service platform of China National Intellectual Property Administration government website, click on "Patent Search Query" to access the information query of public and multinational patent examination, or click on "Patent Affairs Service" to access the "Patent Affairs Service System" to query the fees payable and paid fees.
(3) On-site inquiry
There is a fee inquiry service desk in the acceptance hall of China National Intellectual Property Administration Patent Office, which can inquire about the type, amount and payment period of the fees payable on the day of payment for the payer on the spot.
Patent application patent fee