Legal basis: Article 26 of the Patent Law of People's Republic of China (PRC), when applying for a patent for invention or utility model, a request, specification, abstract, patent right and other documents shall be submitted. The request shall specify the name of the invention or utility model, the name of the invention, the name and address of the applicant and other matters. The specification shall give a clear and complete description of the invention or utility model, and shall be accompanied by drawings if the technical personnel in the technical field can realize it. The technical points of the invention or utility model shall be briefly explained.