What is the function of patent certificate?

Patent certificate is a legal document issued by the patent office to the patent applicant after the patent application has passed the examination. The patent certificate records the name of the invention-creation, the name of the applicant for the invention-creation, the starting date of the patent right, the application number and the patent number. If you have a patent, you can do many things, such as applying for a project, getting a qualification, or funding an award.