What must be indicated in the patent claim?

Claim refers to one of the documents that need to be submitted when applying for a patent. The content is mainly based on the specification, which clearly and briefly defines the scope of patent protection, and should also record the technical characteristics of the invention or utility model.

legal ground

Article 26 of the Patent Law of People's Republic of China (PRC) Where an applicant applies for a patent for invention or utility model, he shall submit the written request, specification, abstract, patent claim and other documents. The request shall specify the name of the invention or utility model, the name of the inventor, 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, which shall be subject to the realization of the technical personnel in the technical field; Attached drawings shall be attached when necessary. Article 19 of the Detailed Rules for the Implementation of the Patent Law of People's Republic of China (PRC) shall record the technical features of the invention or utility model in the claims. Where there are multiple claims in the claims, they shall be numbered with Arabic numerals. The scientific and technological terms used in the claims shall be consistent with those used in the specification, and may have chemical formula or mathematical formula, but no illustrations. Unless absolutely necessary, "such as instruction manual" shall not be used.