1. First, the applicant provides original technical data and personal (unit) information; Entrust a patent agency, sign an agency agreement, and write patent application documents that meet the requirements of the patent law.

2. Secondly, submit the patent application documents to the State Patent Office, obtain the patent application number, and pay the patent application fee as required; After preliminary examination, the application for a patent for invention will be published in the patent bulletin and website 18 months after the application date; According to the requirements of the applicant, it may also be required to publish it in advance at any time within 15 months from the date of application; Enter the substantive examination stage (actual examination): within 3 years from the date of application, the applicant may submit an actual examination to the Patent Office at any time.

3. Finally, after substantive examination, the patent conforms to the practicality, novelty and creativity of the invention, and the patent right is granted, and the patent application maintenance fee, annual fee, printing fee and certificate fee are paid according to regulations to obtain the invention patent certificate; Authorized invention patents will be published.