Chang Tsi & Partners

Firm overview:

Established in 2002, boutique firm Chang Tsi & Partners has been recognised by the Ministry of Justice for its IP capability. With over 350 professionals, attorneys at law, patent attorneys and trademark attorneys, Beijing based Chang Tsi & Partners has offices in Shanghai, Guangzhou, Shenzhen and branch offices in the US, Korea, Hong Kong, Taiwan, and Guangxi.

Intellectual property rights, is a mainstay of the firm alongside litigation and dispute resolutions, commercial law and other legal services. The patent practice is a core service at Chang Tsi & Partners. Domestic and international clients are advised on prosecution and litigation matters by three specialist teams – electrical, mechanical and biochemistry.

Team overview:

Chang Tsi’s patent team is led by Michael Wu, on litigation and David Liu on prosecution. The firm has 13 partners and over 100 other lawyers with significant activity on patent matters.

Most of the firm’s patent professionals have science or engineering and law academic backgrounds. Over one third are practicing lawyers and patent attorneys, and one fourth  have been educated in other countries and are holders of patent agency qualifications in the United States and other countries. Chang Tsi’s patent attorneys are qualified in the patent laws of China, the United States, Japan, and European countries, and are proficient in English, Japanese and German.

The patent team lawyers with many years of  litigation experience, including former senior judges and patent examiners with experience in IP courts, and some who have worked in the Patent Reexamination Board under the China National Intellectual Property Administration.

Key matters:

• Chang Tsi & Partners lawyers David Liu, partner Michael Wu and patent attorney Lily Bao advised ITW, an established client in recent years, on patent matters. ITW is a US Fortune 200 company, based in Illinois, that makes fasteners and components.
• The Chang Tsi team studied ITWs products and technologies, designing a specific patent protection strategy. Chang Tsi also worked with IFW to reduce legal risks on IP matters.
• Chang Tsi & Partners lawyers David Liu, counsel and patent attorney Pheobe Xi and  Nancy Lv assisted UK manufacturer Morgan Advanced Materials with the prosecution of patents including the use of ceramic fibres.
• Morgan Advanced Materials is a maker of specialist products, using carbon, advanced ceramics and composites, with 70 sites in 18 countries. Chang Tsi & Partners assisted the client with international patent applications in the United Kingdom and Europe.

Clients:

Air China, Johnson & Johnson, ITW, Morgan Advanced Material, Sennics, Tokyo Electron