The types of cases reviewed by the Trademark Review and Adjudication Board include two categories: the first category: review cases filed with the Trademark Review and Adjudication Board against the decision of the Trademark Office. (1) Reject the review. If the party concerned refuses to accept the application made by the Trademark Office for rejecting trademark registration, it shall apply for reexamination in accordance with Article 34 of the Trademark Law. (2) No registration review. The objector refuses to accept the decision made by the Trademark Office not to register, and applies for reexamination in accordance with Article 35, paragraph 3, of the Trademark Law. (3) Re-examination of the cancellation of a registered trademark. If a party refuses to accept the decision made by the Trademark Office to revoke or not to revoke a registered trademark, it shall apply for a review in accordance with Article 54 of the Trademark Law. (4) Re-examination of invalidation of registered trademarks. If a party refuses to accept the decision made by the Trademark Office to declare a registered trademark invalid, it shall apply for a review in accordance with the provisions of paragraph 2 of Article 44 of the Trademark Law. The second category: review cases filed directly with the Trademark Review and Adjudication Board. Application for invalidation. According to Article 44, paragraph 1, and Article 45, paragraph 1 of the Trademark Law, directly apply to the Trademark Review and Adjudication Board for invalidation of a registered trademark. Other duties of the Trademark Review and Adjudication Board include: identifying well-known trademarks in cases of refusal of registration review and invalidation according to law; Participate in administrative litigation of trademark review cases according to law.