For more than four decades, Fenwick & West LLP has helped some of the world’s most recognized companies become, and remain, market leaders. From emerging enterprises to large public corporations, our clients are leaders in the technology, life sciences and cleantech sectors and are fundamentally changing the world through rapid innovation.  MORE >

Fenwick & West was founded in 1972 in the heart of Silicon Valley—before “Silicon Valley” existed—by four visionary lawyers who left a top-tier New York law firm to pursue their shared belief that technology would revolutionize the business world and to pioneer the legal work for those technological innovations. In order to be most effective, they decided they needed to move to a location close to primary research and technology development. These four attorneys opened their first office in downtown Palo Alto, and Fenwick became one of the first technology law firms in the world.  MORE >

From our founding in 1972, Fenwick has been committed to promoting diversity and inclusion both within our firm and throughout the legal profession. For almost four decades, the firm has actively promoted an open and inclusive work environment and committed significant resources towards improving our diversity efforts at every level.  MORE >

FLEX by Fenwick is the only service created by an AmLaw 100 firm that provides flexible and cost-effective solutions for interim in-house legal needs to high-growth companies.  MORE >

Fenwick & West handles significant cross-border legal and business issues for a wide range of technology and life sciences who operate internationally..  MORE >

At Fenwick, we are proud of our commitment to the community and to our culture of making a difference in the lives of individuals and organizations in the communities where we live and work. We recognize that providing legal services is not only an essential part of our professional responsibility, but also an excellent opportunity for our attorneys to gain valuable practical experience, learn new areas of the law and contribute to the community.  MORE >

Year after year, Fenwick & West is honored for excellence in the legal profession. Many of our attorneys are recognized as leaders in their respective fields, and our Corporate, Tax, Litigation and Intellectual Property Practice Groups consistently receive top national and international rankings, including:

  • Named Technology Group of the Year by Law360
  • Ranked #1 in the Americas for number of technology deals in 2015 by Mergermarket
  • Nearly 20 percent of Fenwick partners are ranked by Chambers
  • Consistently ranked among the top 10 law firms in the U.S. for diversity
  • Recognized as having top mentoring and pro bono programs by Euromoney


We take sustainability very seriously at Fenwick. Like many of our clients, we are adopting policies that reduce consumption and waste, and improve efficiency. By using technologies developed by a number of our cleantech clients, we are at the forefront of implementing sustainable policies and practices that minimize environmental impact. In fact, Fenwick has earned recognition in several areas as one of the top US law firms for implementing sustainable business practices.  MORE >

At Fenwick, we have a passion for excellence and innovation that mirrors our client base. Our firm is making revolutionary changes to the practice of law through substantial investments in proprietary technology tools and processes—allowing us to deliver best-in-class legal services more effectively.   MORE >

Mountain View Office
Silicon Valley Center
801 California Street
Mountain View, CA 94041

San Francisco Office
555 California Street
12th Floor
San Francisco, CA 94104

Seattle Office
1191 Second Avenue
10th Floor
Seattle, WA 98101

New York Office
1211 Avenue of the Americas
32nd Floor
New York, NY 10036

Shanghai Office
Unit 908, 9/F, Kerry Parkside Office
No. 1155 Fang Dian Road
Pudong New Area, Shanghai 201204
P.R. China
+86 21 8017 1200

Fenwick & West Helps Client Novozymes Win Patent Infringement Case

October 27, 2011

Biotechnology powerhouse Novozymes has repeatedly turned to David Tellekson for his expertise in enforcing patent rights. Novozymes celebrated its first trial win with Mr. Tellekson in 2006 in the District of Delaware, obtaining a judgment of willful infringement, followed by an award of double damages and attorneys’ fees, against Genencor. It was therefore not surprising that Novozymes again hired Mr. Tellekson and his Fenwick team to pursue Danisco, a subsidiary of DuPont, in a patent case involving genetically modified proteins. The Fenwick team filed suit against Danisco in the rocket docket of the Western District of Wisconsin in May 2010 and tried the case to a jury in October 2011. After returning a unanimous verdict of willful infringement and validity, the jury awarded Novozymes $18.2 million in damages

The Fenwick & West team was led by David Tellekson and Virginia DeMarchi, together with partner Brian Buckley and associates Melanie Mayer, Jeffrey Lasker, Ewa Davison, Michael Saunders, Jeffrey Ware and David Austin.

About the Fenwick & West Life Sciences Patent Litigation Group

Fenwick's Life Sciences Patent Litigation Group has a track record of success in federal jurisdictions throughout the United States. The group is backed by unique science and technology credentials with in-house expertise and enhanced synergy from Fenwick's 45+ patent prosecution professionals, many with Ph.D. and other advanced technical degrees in disciplines such as molecular biology, organic chemistry, electrical engineering and immunology. The firm was recently ranked by Corporate Counsel as one of the 2011 Top 10 "Go-To" IP litigation firms in the U.S. for Fortune 100 companies and by IP Worldwide as one of the top dozen firms that Fortune 500 companies relied on for IP litigation.