LexField Law Offices

Based in Beijing, LexField Law Offices is a boutique IP firm. We provide a full spectrum of IP services, including strategy counselling, prosecution, enforcement and litigation on commercial and regulatory matters, covering trademarks, patents, copyright, domain names and competition.

Our professionals have graduated from top-tier Chinese and overseas educational institutions. In addition to the rich experience in the IP law field, many of us have solid educational backgrounds or industrial experience outside the legal world. This has provided us with the knowledge, insight and skills needed to meet our clients’ various demands.

We always serve our clients in abusiness-sensitive, result-oriented and cost-effective manner. Our clients include prestigious multinationals and Chinese companies across a diverse array of industries, from telecommunications, automobiles and information technology to life sciences, consumer products, pharmaceuticals, energy and chemical engineering. They include established market players and emerging newcomers. We tailor our services in response to the different demands of each client and are proud of the value we can add to our clients’ businesses.

Firm history

The firm was founded in 2004 by Jan Liu, a leading IP attorney in China, under the name Jan Liu & Associates. In 2009, the firm joined forces with a top-calibre litigation and patent prosecution team led by Hongyi Jiang. Since then, the firm has changed its name to LexField Law Offices and provides full IP legal services.

Firm pride

The firm enjoys trust and commendation from clients, including a number of Fortune 500 companies; this means that a major way in which we attract new clients is by word of mouth.

LexField’s professionals and practice groups are recognised by the world’s most respected legal publications (eg, Chambers & Partners, Managing Intellectual Property, the WTR 1000, the IAM Patent 1000 and Asia IP), receiving top rankings year after year.

Firm strength

Unrivalled trademarks practice

The firm’s trademark team, led by Ms Liu, is outstanding in the market for its high-quality service. The team is highly responsive, provides tailor-made advice and understands the nuance of clients’ business. As a result, the trademark team has been highly recognised by both our worldwide clients and our Chinese peers.

The trademark team comprises approximately 30 trademark professionals, including attorneys at law and trademark agents. It represents a large number of companies worldwide, including large multinationals, Fortune 500 companies and rapidly growing companies across diverse industry sectors.

Unsurpassed litigation practice

Many of the cases that the firm has handled have had widespread impact in China, setting new standards in IP law and establishing LexField as a leader in the IP litigation arena.

Pharmaceutical patent litigation is one of the most complicated and complex practice areas in the field of patent law. The LexField litigation team has rich experience in this field and may have handled the largest number of pharmaceutical patent litigation cases in China, including many landmark cases.

Our litigation team has won more than 30 IP retrials and retrial applications before the Supreme People’s Court in the past few years – more than any other firm. Retrial cases before the Supreme Court overturn judgments made by provincial Higher People’s Courts and are the most challenging in the Chinese legal system. The firm’s record demonstrates that the team clearly has the edge over competitors in the field.

Sophisticated prosecution and commercial IP practice

With a close interaction with the litigation team, our prosecution and commercial IP team is well equipped to help clients build and exploit their patent portfolio in a cost-effective manner and are ready for enforcement and litigation. We help clients mine and identify legally protectable innovations, set up mechanisms internally and externally to safeguard and commercialise their innovations, and draft and prosecute patents that are intended to survive potential challenges and hold copycats liable. We conduct ourselves as an extension of the client’s R&D, marketing and in-house legal team. We proactively serve as the manager of the client’s IP assets to ensure that the client’s legal fees are a justifiable investment for the enhancement of the IP assets which in turn increase the client’s competitive edge in the market and the value of the company.

Contact details

LexField Law Offices
Suite 1009 China Life Tower
16 Chao Yang Men Wai Street
Chaoyang District
Beijing 100020

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