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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 >

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

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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
650.988.8500

San Francisco Office
555 California Street
13th Floor
San Francisco, CA 94104
415.875.2300

Seattle Office
1191 Second Avenue
10th Floor
Seattle, WA 98101
206.389.4510

New York Office
1211 Avenue of the Americas
32nd Floor
New York, NY 10036
212.921.2001

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


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Litigation Alert: KSR International Co. v. Teleflex Inc.—Ordinary Innovation is Obvious

Publication

5/1/2007 - On April 30, the Supreme Court in KSR International v. Teleflex, announced that 'the results of ordinary innovation are not the subject of exclusive rights under the patent laws.

Fenwick Employment Brief - May 12, 2010

Publication

5/12/2010 - Fenwick attorneys discuss Dukes v. Wal-Mart Stores and other employment law news

Fed Circ Reversal Of Alice Order Gives Patent Owners Hope

News

5/12/2016 - In Enfish LLC v. Microsoft Corp., the Federal Circuit ruled that a judge who found that two database patents covered only abstract ideas had inappropriately oversimplified the patents. Bob Sachs spoke with Law360 about this significant ruling.

Publicity rights vs. the First Amendment

Publication

2/19/2014 - Publicity Rights vs First Amendment Rights in advertsising referring to actual people living or dead.

Semiconductors

Industry

7/16/2015 - Our Semiconductors Practice has represented some of Silicon Valley’s most successful semiconductor companies. Our clients represent all sectors of the industry, from EDA developers to fables chip makers and test equipment producers.

Employee Benefits Alert: Another 401(k) Headache: Covering Leased Employees

Publication

8/27/2009 - In a recent employee benefits alert, we looked at temporary and part-time employees, and the circumstances under which an employer must cover them under its 401(k) plan.

Fenwick Employment Brief - October 15, 2009

Publication

10/15/2009 - This Fenwick Employment Brief for October 2009 summarizes recent developments in the law.

Google Case Exposures New Approaches to Copyright and Fair Use on the Internet

Publication

2/22/2006 - On February 21, 2006, the Federal District Court in Los Angeles issued a decision with important new analyses affecting use of copyrighted materials on the Internet.

Antitrust Alert: The Supreme Court issued its decision in Weyerhaeuser Co. v. Ross-Simmons Hardwood Lumber Co., No. 05-381

Publication

2/21/2007 - On February 20, the Supreme Court issued its decision in Weyerhaeuser Co. v. Ross-Simmons Hardwood Lumber Co., No. 05-381, addressing the antitrust analysis of predatory bidding under Sherman Act Section 2.

31-40 of about 190 results

Litigation Alert: Federal Circuit’s Ariosa Decision, Good Chance for Rehearing En Banc

Publication

11/4/2015 - the Supreme Court’s Mayo decision involving patent invalidation under Section 101 of the Patent Act, Ariosa is unusual in that the asserted patent covered what most experts in the medical field consider to be a groundbreaking discovery; the very type of d

Fenwick Employment Brief - September 2015

Publication

9/23/2015 - Fenwick Employment Brief - September 2015

Cleantech

Industry

8/25/2015 - Our Cleantech Practice has a long history of working with companies at the forefront of alternative energy and other cleantech-related technologies. We help clients in all areas of renewable energy – biofuels, chemical, electric, solar and wind.

Fenwick Employment Brief - July 2015

Publication

7/27/2015 - Fenwick Employment Brief - July 2015. Covering current issues in employment and labor law.

Semiconductors

Industry

7/16/2015 - Our Semiconductors Practice has represented some of Silicon Valley’s most successful semiconductor companies. Our clients represent all sectors of the industry, from EDA developers to fables chip makers and test equipment producers.

Intellectual Property Bulletin Spring 2015

Publication

6/18/2015 - Fenwick & West Intellectual Property Bulletin. Covering current legal issues in patent, copyright and intellectual property law.

Litigation Alert: A Good-Faith Belief of Patent Invalidity Is Not a Defense to Inducement of Infringement

Publication

6/5/2015 - Six justices of the Supreme Court agreed that an accused indirect infringer’s good faith belief in invalidity of a patent “will not negate the scienter required under §271(b).” Commil USA, LLC v. Cisco Sys., Inc., No. 13-896, Slip Op. at 13 (Kenned

Tax Alert: IRS Untangles § 163(L) in Cross-Border Hybrid Financing Transaction

Publication

5/13/2015 - “In terrorem” or anti-abuse provisions often receive a lack of judicial and administrative interpretation. Section 163(l) of the Code, enacted in 1997, is no exception, so that even now certain fundamental questions.

Eraser Laws - Forgetting a Minors Past to Save His Future

Publication

5/5/2015 - Earlier this year, California seemingly came to Hector's rescue with its Eraser Law (officially the Privacy Rights for California Minors in the Digital World, Business and Professions Code Sections 22580-2258​2).

Edgar Perez

Associate

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