1. After the patent is granted, the patent certificate will only be issued once. If the right holder accidentally loses it, the State Intellectual Property Office will not reissue the patent certificate;
2. If the patent undergoes a series of activities such as changes, transfers, mortgages, etc., what is written on the patent certificate? It won't be reflected.
Therefore, no matter which of these two situations occurs, it will be very distressing for the rights holder - it is impossible to prove that the patent owner is himself, and he will encounter many problems during use. question