On 29^th May 2025, IAM unveils the 2025 edition of IAM Patent 1000: The World’s Leading Patent Professionals. Now in its 14^th year, the IAM Patent 1000 helps identifying top patent professionals and firm-wide private practice patent expertise in key jurisdictions around the globe. The guided is the result of an extensive 5-month research process performed by a team of full-time analysts through 1,800 interviews with industry specialists. Only those identified by market sources for their exceptional skillsets and profound insights into patent matters feature in the IAM Patent 1000.

In the guide’s China (Domestic) chapter, Wanhuida Intellectual Property is ranked in the silver band in the category of “Litigation” and “Prosecution”.

The firm has been applauded for both its “high specialisation in biochemistry and pharmaceuticals” and its expertise in “capitalising on its technically qualified ensemble to navigate the increasingly sophisticated IP market in China.” It also earns rave reviews for its comprehensive offering with “no technical case beyond the firm’s remit.”

Contentious nous is supplied by 4 recommended individuals. Partner and the firm’s Management Committee member Dr. S. Sam LI is ranked as Luminaries for “revealing a superb understanding of pharmaceutical manufacturing when resolving related disputes for domestic and multinational blue chips.” Partner TANG Tiejun is lauded for her forte over “high-calibre biotech litigation”, and her capability of “tackling the most complex, high-stakes cases with precision and poise, delivering results where it matters most”. Partner ZHANG Shuhua is “a trusted ally” recommended for his “sharp commercial insight and a deep grasp of client priorities”, which enables him to “turn complex patent challenges into strategic wins.” Another fierce litigator to keep an eye on is Feng (Janet) Zheng, who “brings extensive regulatory and compliance expertise to the table” and is “frequently sought after by international market giants” for her competence in “navigating complex patent infringement disputes with precision and authority.”

Non-contentious nous is supplied in abundance by Partner Duan Xiaoling, an IP veteran who has more than three decades of experience under her belt. Completing the line-up is Xie Minnan, whose “exceptional level of professionalism and expertise” and “outstanding professionalism and commitment to delivering exceptional results in patent matters” wins praise from her client.

According to Sophie Storrs, research editor for the IAM Patent 1000: “The IAM Patent 1000 2025 delivers the most in-depth coverage of the market ever undertaken, pinpointing the best of the best across all areas of patent practice. The listings and editorial provide readers with a truly comprehensive overview of patent services around the world, making the IAM Patent 1000 an essential tool for all IP decision makers.”

The IAM Patent 1000 identifies the leading firms in the market. Where appropriate, firms are listed in prosecution, transactions and litigation tables. Firms qualify for a listing on the basis of their depth of expertise, market presence and the level of work on which they are typically engaged.

Individuals qualify for a listing in the IAM Patent 1000 when they receive sufficient positive feedback from peers and clients with knowledge of their practice and the market within which they operate. Only those individuals identified by market sources for their exceptional skill sets and profound insights into patent matters feature in the guide.