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

Lynn H. Pasahow and J. David Hadden Join Firm

April 10, 2001 (Palo Alto, CA) - Fenwick & West announced today that patent litigators Lynn H. Pasahow, 54, and J. David Hadden, 37, have joined the firm as partners. Pasahow and Hadden, who are the latest additions to a patent litigation team that now features 7 partners and over 30 other attorneys, bring extensive trial and counseling experience to a thriving litigation practice.

"Lynn and Dave bring a depth of skill and experience to our practice that further raises the profile of our intellectual property litigation practice and strengthens our national brand in the area of patent litigation," remarked Litigation Group Chair Patricia M. Lucas. "In the past four years, we have increased from around 30 litigators to over 85 litigation attorneys. We have been growing in all practice areas of our group - but we have focused particularly on patent litigation. Patent disputes will continue to be at the center of many business and technology controversies - and Lynn and Dave will help us meet the needs of our high technology client base."

Pasahow and Hadden come to Fenwick & West from the Palo Alto offices of McCutchen, Doyle, Brown & Enersen. While at McCutchen, Pasahow focused on complex intellectual property and patent litigation related to computer hardware and software and the biosciences. Pasahow and Hadden were the team that obtained a preliminary injunction enforcing's 1-Click patent. Pasahow's extensive trial experience also includes having led the team that obtained a jury verdict upholding Cetus' Nobel Prize-winning polymerase chain reaction patents. Hadden, a first-year partner at McCutchen, focuses on intellectual property and patent-related litigation and counseling for high technology clients including, Iomega and Pixar.

"Fenwick's singular technology focus, its reputation as an intellectual property powerhouse, and their impressive growth in the patent litigation group in particular allow us to leverage our experience to continue providing services to clients with the most groundbreaking patent issues," remarked Pasahow. "Fenwick & West provides a unique platform for Dave and me to grow our practices. The patent attorneys in the intellectual property group at Fenwick form a unique base of support and deep expertise."

Pasahow received his undergraduate degree from Stanford University in 1969, and his law degree from the University of California at Berkeley in 1972. Following law school, he clerked in the United States District Court for the Northern District of California. Hadden is a 1986 summa cum laude graduate of Yale College, where he majored in physics, and a 1994 graduate of Yale Law School. Following law school, Hadden clerked on the U.S. Court of Appeals for the 7th Circuit. Prior to entering law school and the practice of law, Hadden utilized his physics background as a National Science Foundation Graduate Fellow, spending three years studying string theory at Princeton University - and contributed to the design of one of the first mountain bike suspension systems.

About Fenwick & West

Established in 1972, Fenwick & West LLP is one of the nation's premier law firms providing comprehensive legal services to national and international technology clients, particularly in the areas of intellectual property, the Internet, venture capital and other corporate finance, joint ventures, M&A and strategic relationships, litigation and dispute resolution, antitrust, taxation, and employment and labor law. The only law firm ever named to Fortune's list of the "100 Best Companies to Work For" for three consecutive years (1998-2000) Fenwick & West has offices in Palo Alto and San Francisco, CA as well as Washington, DC. Fenwick & West's Web site URL is