How to change the description of the certified patent?

The certificate cannot be changed. This is the only one. You can only apply for changing the description item again, which is the same as the previous application, and then apply for a copy of the patent register. Detailed process: If you used an agency to apply electronically before, please ask them to help you apply for change. If you want to change yourself, you need to register an electronic application account and submit a description of the change of the project. If it was a paper application before, you can also directly fill in the application form for manual change and mail it to the Patent Office. The form is on the official website of the Patent Office. You can also call their service hotline in official website.