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For more than four decades, Fenwick & West 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.

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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.

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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.

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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.

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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:

  • Nearly 15 percent of Fenwick partners named America's Leading Lawyers for Business by Chambers USA and Chambers Global
  • Selected as a "Go-To" law firm by in-house legal departments at Fortune 500 companies in Corporate Counsel magazine
  • Named to The National Law Journal's inaugural "Intellectual Property Hot List" for outstanding patent, copyright, trademark and IP litigation services

Read more about Fenwick's awards, honors and rankings

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.

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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.

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Mountain View Office
Silicon Valley Center
801 California Street
Mountain View, CA 94041
650.988.8500

San Francisco Office
555 California Street
12th Floor
San Francisco, CA 94104
415.875.2300

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

Mark S. Ostrau

Co-Chair, Antitrust & Unfair Competition

Industry Lead, Cleantech

Partner, Intellectual Property  

icon partner 650.335.7269  

Mark's practice focuses on helping high technology and clean technology companies grow into sustainable, competitive businesses. He does this by assisting them in acquiring, developing and commercializing their technologies and products. For over twenty years, Mark has helped many leading Silicon Valley startups and public companies navigate their licensing, distribution and technology transactions.

Mark is also co-chair of the Antitrust and Unfair Competition Group. His antitrust services include merger filings and investigations, antitrust counseling, and assisting clients with a wide variety of antitrust, marketing, M&A, intellectual property and misuse issues.

Mark regularly represents startup, emerging and established IT and cleantech clients through all phases of their business lifecycle in matters related to:

  • IP acquisition and protection, including key licenses and technology transfer agreements
  • R&D, manufacturing and production arrangements
  • participation in standards organizations
  • go-to-market strategies and agreements with suppliers, partners, and customers
  • mergers and acquisitions

His practice also includes regularly representing clients before various government antitrust agencies in connection with the U.S. Hart-Scott-Rodino Act and other antitrust aspects of acquisitions worldwide. He has personally handled approximately two hundred filings with the Federal Trade Commission and Department of Justice antitrust sections specifically responsible for high technology matters, including many of the most significant recent transactions in the industry, such as Cisco System's acquisition of Scientific Atlanta, Symantec Corporation's acquisition of VERITAS Software, Macromedia's sale to Adobe Systems, Data Domain's sale to EMC, and the sales of both Zappos.com and Diapers.com to Amazon.com. He has managed numerous HSR "second requests" and related foreign investigations involving market concentration, technology and IP issues, including matters such as Adobe/Macromedia, Cooper/Ocular Sciences, ScanSoft/Nuance, Cadence/CCT, Fair Isaac/HNC, Microsoft/Intuit, TIBCO/Talarian, and VeriSign/Thawte.

Mark also provides daily advice and counseling on the issues and business practices critical to technology industries, including R&D collaborations, patent pools and standard setting, product interoperability, patent and copyright misuse, package licensing and bundling, marketing and distribution, and pricing and discrimination.

Notable companies he has represented include:

  • Amyris
  • ASML
  • Cisco Systems
  • Concur Technologies
  • CooperVision
  • Intuit
  • Kleiner Perkins Caufield & Byers
  • Silver Spring Networks
  • Symantec
  • VeriSign

Mark has authored or presented numerous articles and speeches on a variety of licensing and antitrust topics relevant to technology industries, and is often quoted in industry and general media. He was a contributing author to the ABA Antitrust Section handbook Intellectual Property Misuse: Licensing and Litigation (2000), the 2005 edition of the California CEB publication Sales and Mergers of California Businesses, and the California State Bar's California State Antitrust Law and Unfair Competition Law (2009). In addition, he regularly provides educational seminars for high technology companies regarding both licensing and antitrust issues. He is a member of the ABA Section of Antitrust Law and the Science and Technology Law Section, where he co-chairs the Cleantech and Climate Change committee.

Mark has been listed in Best Lawyers in America for antitrust law since 2009, as a leader in antitrust law by Chambers USA and selected as a Northern California Super Lawyer since 2006 by Super Lawyers, a Thomson Reuters publication.

 

About Mark