What are the procedures for substantive examination of invention patents?

Legal analysis: the procedure of substantive examination of invention patent is that the applicant needs to submit a request for substantive examination to the patent office and submit reference materials related to his invention before the application date; After examination, the Patent Office considers that it does not meet the requirements, and notifies the applicant to make amendments; If no reason for rejection is found after examination, a patent certificate for invention may be granted.

Legal basis: People's Republic of China (PRC) Patent Law.

Article 35 Within 3 years from the date of filing, the administrative department for patent in the State Council may, upon the request of the applicant at any time, make a substantive examination of the application; If the applicant fails to request substantive examination within the time limit without justifiable reasons, the application shall be deemed to have been withdrawn. The patent administrative department of the State Council may, when it deems it necessary, examine the application for a patent for invention on its own.

Article 36 When requesting substantive examination, an applicant for a patent for invention shall submit reference materials related to his invention before the date of application. Where an application for a patent for invention is filed in a foreign country, the patent administration department of the State Council may require the applicant to submit the information retrieved during the examination of his application in that country or the information on the examination results within a specified time limit; If the application is not submitted within the time limit without justifiable reasons, the application shall be deemed to have been withdrawn.