Legal analysis: The request for patent invalidation should be submitted in accordance with the following regulations: when requesting a patent invalidation, a request for patent invalidation and necessary evidence should be submitted to the Patent Reexamination Board in duplicate. The request for invalidation should combine all the evidence submitted, specify the reasons for the invalidation request, and indicate the evidence on which each reason is based.
Legal basis: "Patent Law of the People's Republic of China" Article 45 From the date when the patent administration department of the State Council announces the grant of a patent right, any unit or individual believes that the grant of the patent right is inappropriate. If the relevant provisions of this Law are met, the patent administration department of the State Council may be requested to declare the patent right invalid.