There is an applicant for a patent, and the patent right belongs to the applicant. Your name is also A, which means you have the same name. The patent has the company, inventor, mailing address and so on. At the same time, when the patent is granted to you, there will be a patent acceptance letter. If the patent is approved, there will also be an invention patent certificate or utility model patent certificate. If you have it, it proves that you are true; if you don't, it proves that you are false. If it is said that the patent has been transferred to you, and the legal status of the patent can be checked, the authenticity can be verified.