1. Submitting a request for a patent for invention means expressing China National Intellectual Property Administration's desire for a patent right.
2. The technical features of patent protection are determined by submitting the patent claim for invention.
3. Submit the description and abstract of the invention patent, explaining the technical features and specific implementation methods of the invention patent.
4. Patent examination.
5. China National Intellectual Property Administration made a preliminary examination of the relevant materials submitted. If the relevant materials submitted do not meet the requirements, the applicant may make corrections. If it passes the preliminary examination, China National Intellectual Property Administration will publish it within 18 months from the date of application, and the applicant may also request to publish it in advance. Finally, the application should be examined in substance. The applicant shall submit an application for substantive examination to China National Intellectual Property Administration within three years from the date of application. If the substantive examination is passed, China National Intellectual Property Administration will make a decision to grant the applicant the invention patent right, and register and announce it.