Hello! If I want to apply for a patent by mail, what materials should I prepare by mail? You need to get in touch with the Intellectual Property Office before mailing.

Hello, you need to prepare the patent request, patent claim, specification, abstract and drawings. These are the standard formats on China National Intellectual Property Administration's website. Just download and fill them out. If you send it by mail, you can go to patent agencies in various places organically. The specific address is listed on China National Intellectual Property Administration's website. It can also be sent directly to China National Intellectual Property Administration Patent Office. However, if you want to be quick, you'd better download the online patent application software and apply through the network.