If someone else applies for an objection to the patent right, and if the objection is established after review by the National Patent Reexamination Board, the authorized patent will also be declared invalid.
According to the Patent Law of the People's Republic of China
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 patent If the grant of a patent right does not comply with the relevant provisions of this Law, you may request the Patent Reexamination Board to declare the patent right invalid.
Article 46 The Patent Reexamination Board shall promptly review and make a decision on a request to declare the patent right invalid, and notify the requester and the patentee. The decision to declare the patent right invalid shall be registered and announced by the patent administration department of the State Council.
Anyone who is dissatisfied with the decision of the Patent Reexamination Board to declare the patent right invalid or maintain the patent right may file a lawsuit in the People's Court within three months from the date of receipt of the notice. The people's court shall notify the other party in the invalidation request procedure to participate in the litigation as a third party.