Is the patent of Dr. Cao true?

It's true. Dr. Cao's patent is a new operation to remove bags under the eyes, which is not easy to recur and has no traces of fat. It is a patented technology permitted by law and recognized by the health department. It broke through the classic surgical procedure of removing bags under eyes by cutting fat, which has been passed down in the international plastic surgery field for half a century, and it will be the world's leading technology by July 28, 2023. A patent is an invention protected by legal norms. An invention that submits a patent application to a national or regional examination and approval authority and, after passing the examination according to law, grants the patent applicant the exclusive right to invent within a specified time.