Materials required to apply for a national invention patent. An invention is a technical solution proposed by the inventor to solve a specific problem using the laws of nature. Therefore, the Implementing Rules of my country’s Patent Law point out that the invention referred to in the patent law refers to a new technical solution proposed for a product, method or improvement thereof. So what materials are needed to apply for a national invention patent? What materials are needed to apply for a national invention patent? What materials are needed to apply for a national invention patent? 1. Claims: When applying for a patent, the applicant must provide the technical essence of the patent being applied for and the content required for patent protection. 2. Abstract of the specification: The invention content and introduction of the patent applied for by the applicant should not exceed 300 words. 3. Instructions: Applicants applying for a patent must provide detailed instructions, including an introduction to the technical field; background technology of relevant research; purpose of the invention and technical solutions; what are the effects and advantages that the patent can achieve; in order to verify the effects and advantages, Provide detailed figures, text descriptions or diagrams. 4. Description of drawings: If necessary, the diagrams for applying for the patent can be provided. 5. If the applied patent is implemented in the future, relevant explanations must be provided.