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

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San Francisco, CA 94104

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Unit 908, 9/F, Kerry Parkside Office
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Pudong New Area, Shanghai 201204
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+86 21 8017 1200

Fenwick Launches Patent Eligibility Case Analysis Tool Helping Patent Holders Decode Post-Alice Invalidity Claims

Mountain View, CA (March 25, 2015) – Fenwick & West today announced the launch of an interactive online tool that allows users to analyze patent eligibility cases The Supreme Court’s June 2014 ruling in Alice v. CLS Bank significantly changed the patent landscape. Since the ruling, a flood of new cases have resulted in patents being invalidated. Fenwick’s new tool is freely accessible and allows users to develop their own analysis of patent eligibility post-Alice. Patent holders can use the tool to evaluate how recent court decisions might impact their intellectual property.

“I want to give people the opportunity to form their own opinions about the state of patentable subject matter,” said Stuart Meyer, an intellectual property partner at Fenwick & West who spearheaded the project. “Intellectual property protections have long been a swinging pendulum. While protections for inventors, especially in software, are currently at a low, eventually we’ll see the pendulum swing back.”

Fenwick’s Patent Eligibility Case Analysis Tool helps our clients easily access key takeaways from post-Alice patent eligibility decisions by providing short summaries of the decision along with the court’s rationale for each key finding.

This interactive visual representation of changing case law groups decisions first by whether the court invalidated or validated the patent claim(s) in question. Decisions are categorized next by legal rationale, such as 'not abstract,' 'fundamental economic practice,' 'mental process,' etc.; and then presented chronologically by decision date. Each dot represents a decision. The dot colors indicate the type of tribunal—district court (purple), Federal Circuit (green), or USPTO (yellow)—that tried each case.

Along with the new Patent Eligibility Case Analysis tool, Fenwick has updated an existing tool that explores post-grant proceedings at the U.S. Patent and Trademark Office created by the America Invents Act. The tool can be found at Both tools are updated regularly with new cases.

Fenwick’s patent practice is built with seasoned patent practitioners and litigators with deep experience in patent disputes at the U.S. Patent and Trademark Office, U.S. federal courts and the International Trade Commission. The practice covers all aspects of dealing with administrative patent disputes including Post-Grant Proceedings as well as cross-over patent litigation strategy.

About Fenwick & West
Fenwick & West provides comprehensive legal services to ground-breaking technology and life sciences companies at every stage of their lifecycle. We craft innovative, cost-effective and practical solutions for established and emerging companies on issues ranging from venture capital, public offerings, joint ventures, M&A and strategic relationships, to intellectual property, litigation and dispute resolution, taxation, antitrust, and employment and labor law. For more than four decades, Fenwick has helped some of the world's most recognized companies become and remain market leaders. For information about joining our team visit us at  ​​​​​​​​​​​​​​