1. It usually takes 20 days to one month to provide the disclosure letter and entrust an agency to write the application documents (this step can be omitted if there is no entrusted agency);
2. Submit the application documents, get the notification of acceptance from the Patent Office, determine the application date, and submit an early public statement and request substantive examination on the day of submission, which can speed up the examination process;
3. The Patent Office will formally review the patent application documents for about 2-3 months, and enter the public preparation stage after the first trial is passed;
4. It takes about 6-8 months for the Patent Office to publish the invention application documents;
5. The time for the Patent Office to substantially examine the invention patent documents is about one and a half to two years, during which the examiner communicates with the applicant on the substantive content of the invention, namely novelty, creativity and practicality (entrusting the agency to communicate with the agency to determine the appropriate scope of protection of the invention), and this communication can be repeated many times until it is revised to the satisfaction of the examiner;
6. Letter of authorization issued by the Patent Office;
7. The applicant shall go through the formalities for obtaining the patent certificate;
8. It takes about 2-3 months to get the patent certificate.