I registered a trademark for Zhencai Peony, and the other party also had a "Peony" trademark. After the first trial, the other party objected on the grounds of similarity. After we defended it, we succeeded, and then the other party settled on the grounds of similarity. An invalidation declaration was filed on the grounds of free riding. Today I received the invalidation declaration ruling from the Trademark Review and Adjudication Board, declaring the trademark invalid. The ruling held that the other party’s Peony trademark was recognized as a well-known trademark in China as a famous trademark in Jiangsu Province, and it was unfair to free ride on famous brands. Competitive behavior has disrupted the fair market economic order and caused adverse social impacts. The applicant requested to rely on the relevant provisions of Articles 7, 9, 30, 10 and 44 (Trademark Law) , declaring the disputed trademark invalid. What is the probability of a successful lawsuit based on the above circumstances? If you appeal, what is the probability of success? Thanks! The overall probability of success in rejection review is less than 30%. However, according to the "Trademark Examination Standards", your trademark is indeed a similar trademark, so the chance of rejection review is almost non-existent! Re-examination is not recommended. The general re-examination fee ranges from 2,500 to 5,000. With this fee, it is better to apply for a few more. And did you not check with your previous agency before applying?