If the party involved in a trademark objection is dissatisfied with the trademark objection ruling made by the Trademark Office, it may submit a review to the Trademark Review and Adjudication Board within fifteen days after receiving the "Trademark Opposition Ruling" issued by the Trademark Office. The opposing party needs to respond to this application within 30 days from the date of receipt of the "Reply to Trademark Objection Review". The trademark opposition review and defense procedures will take 2-3 years to complete. The following is information related to trademark opposition review defense. 1. Process (1) Sign a trademark agency power of attorney and attach the respondent’s identity certificate (such as business license, ID card, etc.); (2) Prepare defense documents: including writing a defense letter, drafting reasons for defense, and Factual basis and relevant evidence; (3). The trademark agency shall submit a defense document to the Trademark Office on behalf of the respondent. 2. Required materials (1), applicant’s identity document (copy of business license) (2) , Trademark agency power of attorney; (3), trademark design ideas, design ideas, professional design certification, and issue written materials; (4), use and publicity of the opposed trademark; (5), company profile; (6), Other relevant evidence. 3. Things to note for trademark opposition review: The opposition review stage of a trademark shows how much the relevant rights holders attach importance to the trademark. Therefore, no matter which party files a trademark objection review, the other party can better respond and respond to the other party’s relevant objections. Rebuttal with facts, reasons and evidence. The respondent has a great advantage in succeeding in the objection review stage. Since the Trademark Office has not supported the other party’s request, the success rate of the defense is higher. However, the respondent cannot give up the defense just because it has a higher success rate. The opponent’s objection review will be affirmative. If stronger evidence is organized or new facts and reasons are proposed, even if the original facts, reasons and evidence are still used, the Trademark Review and Adjudication Board will make a new ruling. At this time, a defense is necessary, and it is better to entrust a professional intellectual property agent with agency qualifications. A lawyer will actively organize relevant materials for defense to protect your trademark exclusive rights.