Lexfield Law Office

Firm overview:

Lexfield Law Office is a well-respected boutique IP firm located in China’s capital. The firm has evolved from its beginnings as Jan Liu & Associates—focused on trademarks, copyright and anti-competition matters—to a full-service practice with additional strengths in patents and litigation, following a 2009 merger.

Lexfield’s patent litigators work closely with the prosecution team to ensure that applications are free from errors or defects that could be detrimental to clients in future invalidation or infringement proceedings. The firm has assembled a team equipped to handle patents in a wide range of technical fields, and has established a reputation for winning complex, precedent-setting patent cases. Lexfield made headlines in 2018 for being selected by Qualcomm for representation in patent suits against Apple.

Team overview:

Senior partner Hongyi Jiang is widely acknowledged in China’s IP community as a formidable litigator. Jiang has handled numerous landmark pharmaceutical patent litigation cases in China, alongside multiple achievements in trademark, copyright and antitrust disputes.

David Huang is sought after by clients ranging from startups to multinationals for his strategic advice on patent portfolios. His broad practice includes standard-essential patent (SEP) licensing litigation as well as prosecution and transaction matters, such as advising Disney in the IP and licensing issues in the establishment of the Shanghai theme park.