I have a patent number. How to check the patent certificate? I have applied for a number of patents, and have been authorized by the state, and the patent certificate has been issued. )

Go to official website, China Intellectual Property Office, and enter your patent number in the advanced search. You can't find it without authorization.

I'll teach you two ways. You can check who your agent is on the website. General institutions will have scanning records.

The second method is to get a patent registration certificate, which costs tens of dollars.

But I don't understand, if it's yours, why is the certificate sent to the company? But if the certificate belongs to the company, why should I show it to you?