The petitioner for patent reexamination must be the applicant for the rejected patent application and the patentee whose patent right has been revoked, or the patentee who maintains the patent right or the petitioner for revoking the patent right, or anyone else Neither has the right to file a request for review. Please confirm that the reexamination request must be made within 3 months from the date of receipt of the Patent Office's notice of rejection of the application or the date of receipt of the Patent Office's decision to revoke or maintain the patent right, otherwise the relevant decision made by the Patent Office will be Be legally effective. To request reexamination, a reexamination request in duplicate shall be submitted to the Patent Reexamination Board, stating the reasons and attaching relevant supporting documents. The reasons for reexamination can only be based on matters involved in the Patent Office's decision to reject a patent application or revoke or maintain a patent right, and other irrelevant reasons and supporting materials may not be raised. When the applicant or patentee requests reexamination, the applicant or patentee may modify the rejected patent application or the canceled patent document, but the modification shall be limited to the part involved in the decision to reject the application or the decision to revoke the patent right, and shall not exceed the original description and Scope recorded in claims