If a trademark registrant needs to apply for a review by the Trademark Review and Adjudication Board, he can follow the following steps:

1. Prepare review application documents: The trademark registrant needs to prepare an application for review by the Trademark Review and Adjudication Board. document. This document should include the personal or corporate information of the trademark registrant, the trademark registration number, a detailed description of the trademark, the specific reasons and evidence for the review request, etc.

2. Submit reexamination application: Submit the completed reexamination application documents to the relevant Trademark Review and Adjudication Board. The specific submission method and address can be found on the official website of the Trademark Review and Adjudication Board or in relevant documents.

3. Pay corresponding fees: Trademark registrants may need to pay certain review fees. The specific fee amounts and payment methods can be found in the regulations or guidelines of the Trademark Review and Adjudication Board.

4. Provide evidence and statements: When applying for reexamination, the trademark registrant should provide sufficient evidence and detailed statements to support its request for reexamination. This can include evidence and reasons related to the unregistrability of the trademark, the difference in conflicting trademarks, etc.

5. Reexamination procedure: The Trademark Review and Adjudication Board will review the reexamination application and may require the trademark registrant to provide further evidence or make a statement. During the reexamination procedure, the trademark registrant has the right to respond and defend the opponent's reasons and evidence.

6. Review results: The Trademark Review and Adjudication Board will make a review decision based on the review application and relevant evidence. The results of the review may include maintaining the original decision, revoking the original decision, changing the trademark registration, etc.

Important note: The specific procedures and requirements for Trademark Review and Adjudication Board review may vary from country to country or region. It is recommended that trademark registrants carefully read relevant laws, regulations and guidelines before applying for review, and consult a professional trademark agency or lawyer to obtain accurate guidance and advice.

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