Steps:
Register an electronic account.
Download CPC client
Add the content of the application; The electronic account has a signature certificate, just sign and send it.
Personal application for electronic account: materials: copy of ID card (signature), electronic application registration request, and patent electronic application registration agreement (2 copies).
Company's application for electronic account: materials: copy of organization code certificate, application for electronic application registration, and agreement for electronic application registration of patent (2 copies).
Actually, it's quite troublesome to get it up. It's easy to give it to an agent. Writing it out is generally better than writing it yourself!
I hope it helps you!