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
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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

Darryl Woo Named Litigation Group Leader at Fenwick & West

October 30, 2007 (Mountain View and San Francisco, CA) – Fenwick & West is pleased to announce that Darryl M. Woo has been elected as Chair of the Litigation Group, effective January 1, 2008.

Darryl joined Fenwick & West in 2000 and, for the past three years, has been the Patent Litigation Group Chair.

During his career with Fenwick & West, Darryl has secured numerous litigation victories for his clients. Recent successes include a $74.7 million jury verdict in the Northern District of California on behalf of Asyst Technologies, and a defense summary judgment in Boston for a client's product having more than 250 million users worldwide.

Darryl has been recognized by his peers and the legal media for his achievements. In September 2007, he was named one of California's "Top 100 Lawyers" by the Daily Journal. He has been selected as a "Super Lawyer" in Northern California for the past three years (2005-2007).

Darryl was recognized with a "Fenwick's Finest" award in 2006 for Outstanding Role Model in Corporate Citizenship. He is involved with the legal profession as the Vice Chair of the Programs Committee of the Association of Business Trial Lawyers, Northern California chapter. Darryl has also served in leadership roles in the National Asian Pacific American Bar Association and the Asian American Bar Association of the Greater Bay Area, as well as in a variety of community non-profit causes.

Darryl has lectured often on trial practice techniques, patent and IP litigation strategy and other substantive topics for the Practising Law Institute, the Continuing Education of the Bar – California, and other organizations. Darryl was recently featured as a panelist for the Patent Litigation Roundtable, published in the July 2007 issue of California Lawyer. He is closely involved with the production, administration and teaching of external and internal training sessions, including a participant's role in Fenwick & West's Patent Law Year in Review program and will be featured along with two other partners in Allen & Overy's Patent Masterclass in London.

Darryl received his J.D. from Georgetown University in 1981 and his bachelor's degree in Biology from the University of California at Berkeley in 1977.

With Darryl's taking on the role of Litigation Group Chair, Charlene M. Morrow will become Chair of the Patent Litigation group, which currently has over 38 members. Charlene has been in practice in the Silicon Valley since 1989, where she represents a variety of software and semiconductor clients. She has an active trial practice including recent victories in patent trials in California and Delaware.

About Fenwick & West

Established in 1972, Fenwick & West provides comprehensive legal services to technology and life sciences clients of national and international prominence. Fenwick & West attorneys have handled some of the most prominent IP litigation over the past two decades, including securing one of the largest IP litigation settlements of 2005—a $400M settlement for its client Compuware against IBM—and a couple of the largest patent jury verdicts of the past fifteen months. The firm is ranked by Managing Intellectual Property as one of the top five West coast firms for IP litigation, by IP Worldwide as one of the top dozen firms that Fortune 500 companies relied on for IP litigation, and was recently awarded "Most Innovative Use of Technology by a Law Firm" by American Lawyer Media for the firm's proprietary electronic discovery tools.