Patents are generally documents issued by government agencies or regional organizations representing several countries according to their applications. This kind of document records the contents of the invention and creation, and in a certain period of time, it has produced such a legal state that the patented invention and creation can only be implemented by others with the permission of the patentee. In China, there are three kinds of patents: inventions, utility models and designs.
A patent is an invention protected by legal norms. It is an invention-creation that applies to the national examination and approval authority for a patent and is granted the exclusive right to invent within a specified time after passing the examination according to law.