Where to write the patent payment area?

The payment area should be filled in according to the patent granting agency and the region to which the patent belongs.

For domestically authorized patents, the payment area should be filled in with the area where the State Intellectual Property Office of China is located. For internationally authorized patents, the payment region should be filled in with the region where the World Intellectual Property Organization is located.

For patents filed in different regions, the payment areas may be different, so you need to carefully check the specific requirements of each patent.