1. Chang Tsi & Partners Recognised as “Most Trustworthy Partner” by BorgWarner

BorgWarner is one of the world's largest auto parts suppliers, and turbocharger products are one of the core products of BorgWarner, which provides power solutions for many world[1]renowned auto manufacturers. We are proud ... 

2. Chang Tsi & Partners Ranked as Top 10 IP Agency

The well-known domestic legal media, IP Power (zhichanli) and IP House (zhichanbao), have jointly released the "2020-2021 China's Top 10 Outstanding IP Agencies", on which Chang Tsi & Partners Law Firm was once again ranked as Top 10 ...Read more >>>

3. Tips for Defensive Trademark Protection in Hong Kong

Defensive trademarks have been protected in HK based on Trade Marks Ordinance (Cap. 559). It was also possible under Cap. 43 (see sections 55 to 57) to register defensive trademarks ... 

4. Intermediate Product/ Process and Risk of Patent Infringement in China

Recently, we found a case Xitian Zhang vs. CSPC OUYI Pharmaceutical Co., Ltd etc. The patent in this case covers the resolution of the enantiomers of amlodipine (CN1100038C). The Supreme People’s Court has released ...