The materials required for the invalidation application include (arranged and bound in order) (1) Application for invalidation of registered trademark (home page) (2) Catalog of review materials (3) Application for invalidation of registered trademark (text) ) (4) Copies of the dispute preliminary determination announcement page and registration announcement page (5) Trademark agency power of attorney (if a trademark agency is entrusted to handle the matter, a signed power of attorney is required) (6) Applicant's subject qualification certification document (7) Evidence catalog and evidence materials. All the above documents should be submitted in duplicate. The above are the materials that need to be submitted to apply for a trademark invalidation. We hope they will be adopted. If the applicant needs to supplement relevant evidence materials after filing an application for trademark invalidation, he should state this in the application for trademark invalidation and submit it within 3 months from the date of submission. If the application is not submitted within 3 months from the date of submission, it will be deemed to have given up supplementing the relevant evidence. Evidence materials. However, if the evidence is generated after the expiration of the time limit or the applicant has other legitimate reasons for failing to submit it before the expiration of the time limit, if it is submitted after the expiration of the time limit, the Trademark Review and Adjudication Board may accept the evidence after it is handed over to the respondent and cross-examined.