Patent: The original meaning is open to people and public supervision, which comes from Latin. A patent usually has the following three meanings: first, it refers to the patent right, that is, the exclusive right granted by the State Patent Office to the patent applicant or his successor to manufacture, use or sell his invention and creation within the statutory time limit; Second, it refers to inventions and creations that have obtained patent rights; The third kind refers to patent documents, that is, legal documents that record the detailed contents of inventions and creations and the technical scope protected by law.