1, the inventor filed a patent application;
2. Accepted by China National Intellectual Property Administration;
3. The applicant pays the application fee;
4. Classification of patent offices;
5. Preliminary examination;
6. After the invention is qualified, the applicant shall submit a request for substantive examination in writing within three years from the date of application;
7. Those who pass the substantive examination shall be granted a patent right and obtain a patent certificate.