What documents do I need to submit to apply for a patent for invention?

Documents to be submitted when applying for an invention patent: 1. Request: including the name of the invention patent, the name of the inventor or designer, the name and address of the applicant, etc. 2. Description: including the name, technical field, background technology, invention content, illustrations and specific implementation methods of the invention patent. 3. The claim describes the technical features of the invention, and clearly and concisely expresses the content of the requested protection. 4. Drawings in the specification: Invention patents often have drawings. If the technical scheme can be described clearly and completely in words, there is no need for drawings. You can entrust a nationally recognized patent agency to handle it, or you can go directly to the National Patent Office in China. !