How many times can a patent reexamination be tried at most?

A patent application can be examined once. According to the relevant laws and regulations, if a patent applicant requests 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 corresponding reexamination conclusions according to law. If the parties are still dissatisfied with the conclusion of the review, they may bring a lawsuit to the people's court within three months from the date of receiving the notice.

legal ground

Article 41 of the Detailed Rules for the Implementation of the Patent Law of People's Republic of China (PRC).

If the applicant for a patent refuses to accept the decision of the patent administration department in the State Council to reject the application, he may, within three months from the date of receiving the notice, request the patent administration department in the State Council for reexamination. After the review, the patent administration department in the State Council shall make a decision and notify the patent applicant.

If the patent applicant refuses to accept the reexamination decision of the patent administrative department of the State Council, he may bring a lawsuit to the people's court within three months from the date of receiving the notice.