Legal analysis: If any other entity or individual requests the Trademark Review and Adjudication Board to declare the registered trademark invalid, the Trademark Review and Adjudication Board shall notify the relevant parties in writing after receiving the application and file a reply within a time limit. The Trademark Review and Adjudication Board shall, within nine months from the date of receiving the application, decide to maintain the registered trademark or declare it invalid, and notify the parties concerned in writing. There are special circumstances that need to be extended, which can be extended for three months with the approval of the administrative department for industry and commerce of the State Council. If a party refuses to accept the ruling of the Trademark Review and Adjudication Board, he may bring a lawsuit to the people's court within 30 days from the date of receiving the notice. The people's court shall notify the other party to the trademark adjudication procedure to participate in the proceedings as a third party.

Legal basis: Article 44 of the Trademark Law of People's Republic of China (PRC) violates the provisions of Articles 10, 11 and 12 of this law, or is registered by deception or other improper means, the Trademark Office shall declare the registered trademark invalid; Other units or individuals may request the Trademark Review and Adjudication Board to declare the registered trademark invalid.