Chang Tsi & Partners provide a comprehensive IP offering to clients in the biotechnology, pharmaceuticals and technology sectors, with a particular strength in trade marks. The highly regarded founding partners Spring Chang and Simon Tsi jointly lead the firm. Chang boasts three decades of practice and is particularly well-versed in advising global electronics, consumer and pharmaceutical companies in trade mark prosecution, litigation and commercial IP, while Tsi is reputed for his wide scope of litigation expertise. Michael Wu is noted for his strengths in telecoms patents, software and copyright litigation, while Michael Fu excels in trade mark and unfair competition cases. Tracy Shen is well-equipped to handle trade mark litigation, portfolio management and strategy.
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Key clients
- Illinois Tool Works, Inc.
- LEGO Toy (Shanghai) Co. Ltd.
- UNDER ARMOUR
- Mylan Inc.
- HYDRAFACIAL LLC
- The Walt Disney Company
- INTERCONTINENTAL GREAT BRANDS LLC
- 武汉路特斯科技有限公司
- The Clorox Company
- EBIN NEW YORK INC.
- 3DHISTECH KFT.
- 珠海冠宇电池股份有限公司
Work highlights
Represented Champion, a renowned American apparel company in a major trade mark infringement and unfair competition lawsuit against a Fujian family-run enterprise.
Advised Yili in a trade mark dispute case.
Represented global fashion retailer SHEIN in a UDRP-based domain name dispute.
Lawyers
Hall of Fame
The lawyers at the very top of the profession, widely known and respected by peers and clients for their longstanding involvement in market-leading work.
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Practice head
Simon Tsi; Spring Chang; Michael Wu; Philip Qin; Tracy Shen; Nancy Qu; Michael Wu; Michael Fu; Emma Ma; Ryan Xu; Ason Zhang; David Lee; Yan Gao; Laura Li; Sue Gui; Nana Zhang; Leslie Xu; Eva Hu; Lilian Qiu; Jerry Wang; Rose Xu