How many times can a patent application be examined?

The parties may file an application for patent reexamination. According to China's laws on patent rights, if a patent applicant requests a reexamination from the patent administration department in the State Council, it shall submit relevant evidence, and the patent administration department in the State Council shall make a corresponding reexamination conclusion according to law.

legal ground

Article 63 of the Detailed Rules for the Implementation of the Patent Law of People's Republic of China (PRC)

If, after reexamination, the Patent Reexamination Board considers that the reexamination request does not conform to the relevant provisions of the Patent Law and these Rules, it shall notify the petitioner of reexamination and ask him to state his opinions within a specified time limit. If no reply is made at the expiration of the time limit, the request for reexamination shall be deemed to have been withdrawn; If the Patent Reexamination Board considers that it still does not conform to the relevant provisions of the Patent Law and these Rules after stating its opinions or making amendments, it shall make a reexamination decision and maintain the original rejection decision.

If, after reexamination, the Patent Reexamination Board considers that the original rejection decision does not conform to the relevant provisions of the Patent Law and these Rules, or the revised patent application document eliminates the defects pointed out in the original rejection decision, it shall revoke the original rejection decision and the original examination department shall continue the examination procedure.