What materials are needed for patent application reexamination?

1. The detailed rules for the implementation of the Patent Law stipulate that if a request for reexamination is filed with the Patent Reexamination Board according to law, a request for reexamination shall be submitted, the reasons shall be explained, and relevant evidence shall be attached if necessary. 2. If the reexamination request does not conform to the provisions of the Patent Law, the Patent Reexamination Board shall not accept it, and notify the reexamination requester in writing and explain the reasons. 3. If the request for reexamination does not conform to the prescribed format, the applicant for reexamination shall make corrections within the time limit specified by the Patent Reexamination Board; If no correction is made at the expiration of the time limit, the request for reexamination shall be deemed not to have been made.