 
                                From September 5 to 8, 2025, the 15th China International Trademark & Brand Festival was successfully held in Taiyuan, Shanxi. As the most influential event in China’s trademark sector, this year’s festival gathered representatives from trademark authorities, judicial bodies, well-known enterprises, intellectual property service agencies, and experts worldwide. Participants engaged in in-depth discussions on the development of trademark brands.
 
                             
                            Our Patent Team of Chang Tsi & Partners organized a team-building event to celebrate the great achievement in 2019-2020. As Ms Chenyan Wu (Patent Partner) said, despite the global pandemic, the number of patent filings we handled by August 31, 2020 already surpassed the total number in 2019.
 
                             
                            According to CHATM, Chang Tsi & Partners is listed among the Top 10 Opposition Filing Agencies with the Highest Win Rate
We are pleased to announce that Simon Tsi and Michael Fu, two partners of Chang Tsi & Partners, have been listed in "Chinese IP Lawyers Top 50" by Zhichanli (IP Power), a well-known IP focused media in China.
We represented UNDER ARMOUR in an influential trademark infringement and unfair competition case in China and won in the final judgment.
Simon Tsi (Managing Partner of Chang Tsi & Partners) was awarded “2020 Client Choice: Top 15 Intellectual Property Versatile Practitioners” with his 27 years of abundant professional experience and his high reputation among clients by LEGALBAND.
 
                            According to the lists of " China Business Law Awards 2020" published by China Business Law Journal in April 8, 2020, Chang Tsi & Partners was recognized “Best Law Firm” in three fields, Intellectual Property trademark, Consumer Goods & Retail and Industrial Manufacturing