Without signature, the patent request is invalid. The request shall record the following contents:

1. The name and address of the requester, the name and position of the legal representative or principal responsible person, and the names and addresses of the agent and agency if an agent is entrusted.

2. The name and address of the requested person.

3, the request to deal with matters and facts and reasons. Relevant evidence and supporting materials can be submitted in the form of attachments to the request. The request shall be signed or sealed by the requester.