Can a copy of the patent certificate be reissued at any time?

Yes, generally speaking, go to the office where I represent, or the office where I represent elsewhere, and find an agent. You can also turn to our organization to help you. The general charge is around 400 yuan.

If it cannot be reissued at any time, the patent right is valid at the time of application, and the applicant must be the patentee. Where the patentee is a legal person, a letter of introduction shall be issued. You can do it while the patent right is valid.