Drop-down blank of patent electronic certificate

After downloading the certificate, it is over. If you want to apply for a patent, make an application document in the CPC client and click the signature.

If you can't sign, please check whether the certificate is already in the browser, which can be viewed in the properties-content of the browser. If you have a certificate and still can't sign it, CPC will prompt you why you can't sign it, and you can just modify it according to the prompt.

Ask again if you have questions.