Chang Tsi & Partners

Chang Tsi & Partners is a "National Outstanding Law Firm (nominated by Ministry of Justice of China)" with a strong reputation in intellectual property and litigation.

Since its establishment in 2002, Chang Tsi & Partners has become one of the leading law firms in China. The firm has constantly been referred to as a “National Outstanding Law Firm”, “The Best IP Law Firm in China”, “China IP Law Firm” and “Tier 1 IP Law Firm of the Year” by the Ministry of Justice of China, international legal directories and various business magazines such as the Chambers Asia Pacific, The Asia Pacific Legal 500 as well as Asialaw Profiles.

With over 350 professionals consisting of attorneys at law, patent attorneys and trademark attorneys, Chang Tsi & Partners is based in Beijing with fully-fledged offices in Shanghai and Shenzhen, and branch offices in Guangzhou, Guangxi, Hong Kong, Macau, Taiwan, the United States and Korea, while establishing an enviable reputation in Intellectual Property and Litigation.

Our areas of practice include intellectual property rights, litigation and dispute resolutions, commercial law and other legal services. Since our establishment, we have been a forerunner in various fields such as trademark, patent, IP confirmation, administrative IP as well as judicial protection. Our high-caliber lawyers and sharpest IP experts are dedicated to protecting your legal rights with efficiency and integrity.

Why Chang Tsi & Partners:

International clients choosing a China IP boutique over a large full-service firm gain four structural advantages at Chang Tsi & Partners:

●    Specialist focus: Every partner and associate works exclusively in IP — no dilution of expertise across unrelated practice areas.

●    Dual-engine depth: One of a small number of Chinese firms with genuine Tier 1 recognition in both patent and trademark, enabling coordinated strategy across all IP rights.

●    Technical litigation strength: Patent team members hold engineering and science degrees; nearly one-third are dual-qualified patent attorney-litigators with prior experience in scientific or technical fields — enabling precise, technically credible advocacy before Chinese courts and CNIPA.

●    Proven outcomes: Matters recognized in the Supreme People's Court IP Court Summary of Key Rulings, CNIPA Top 10 Patent Invalidation Cases, and national court typical case lists; gold-band rankings in both trademark enforcement and prosecution.

Practice Areas:

Patent & Technology

Design

Trademark

Copyright

IC Layout-Design Protection

Plant Variety Protection

Litigation & Dispute Resolution

Corporate Law & IP Commercial

Global Renewal & Annuity Service

Asia Hub