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Elihu, David

David M. Elihu

Direct Tel: +1 213-443-3219 , Direct Fax: +1 213-443-3100
Los Angeles
Tel: +1 213 443 3000 Fax: +1 213 443 3100

David Elihu is a Partner in Quinn Emanuel’s Los Angeles office.  David has experience with a broad range of complex commercial litigation and arbitration disputes in a variety of industries, and has an emphasis on high-stakes IP, trade secret, antitrust, and other technical cases.  With a law degree from Harvard and undergraduate and graduate engineering degrees from MIT, David has helped Fortune 500 and startup companies, and high-net worth individuals on disputes involving chemicals, pharmaceuticals, oncology, cosmetics, flat panel displays, dental products, wireless and cellular communications, Internet-based transactions, computer architecture and other technologies.  He has been involved in a variety of patent, antitrust, competition, fraud, and other complex litigation matters at all stages, including early case assessment, government investigations, jury trials and appeals.  David is admitted to practice in California and New York.

  • Access Bio
  • Adcentrx Therapeutics
  • American Express
  • Brink Biologics
  • Contemporary Amperex Technology Co. Limited (CATL)
  • Dentsu
  • Dow Chemical
  • Google
  • IP Bridge
  • ImmunityBio
  • Merck
  • Motorola
  • NantWorks
  • Olaplex
  • Symantec
  • Time Warner Cable
  • University of Southern California
  • Wolverine World Wide
  • Representing multiple pharmaceutical companies in a series of litigations and arbitrations relating to the development and transfer of rights to an oncology drug candidate, and the licensing and development of monoclonal antibodies.
  • Representing IP Bridge in patent matters involving both telecommunications and semiconductor patents.
  • Represented Olaplex in a $93 million trial victory against L’Oreal, the largest beauty company in the world, in a patent and trade secret dispute involving chemical hair treatment additives.
  • Represented Fetch Media, Ltd., a member of the global media agency Dentsu’s family of companies, in a fraud and breach of contract action filed by Uber Technologies, Inc. in the Superior Court of California, relating to the presence of “ad fraud” in mobile advertising. 
  • Represented Time Warner Cable in patent dispute relating to DVR technology filed by TiVo in the Eastern District of Texas. The parties settled favorably on the eve of trial.
  • Represented Motorola in patent, breach of contract and antitrust actions against Apple and Microsoft in the Northern District of Illinois, the Western District of Wisconsin, the International Trade Commission, and the Federal Circuit.
  • Represented a technology company against Facebook in an antitrust action involving tying and monopolization claims relating to the use of virtual currency and social game networks.
  • Represented Furuno Electronics in a dispute before the International Trade Commission involving GPS technology.
  • Represented Olaplex in breach of contract dispute after Quinn Emanuel was retained on the eve of trial.
  • Represented Pendo in a patent lawsuit filed by WalkMe relating to the generation of online tutorials, and secured a motion to dismiss that the asserted claim was did not claim patentable subject matter.
  • Represented various companies in investigations by the United States Department of Justice and the Federal Trade Commission.
  • Harvard Law School
    (J.D., 2009)
    • Harvard Journal on Legislation
      • Co-President, 2008-2009
  • Massachusetts Institute of Technology
    (M.Eng, Biomedical Engineering, 2006)
  • Massachusetts Institute of Technology
    (S.B., Chemical Engineering, 2005)
  • The State Bar of California
  • The State Bar of New York
  • United States Court of Appeals:
    • Federal Circuit
  • Registered to Practice Before the United States Patent and Trademark Office
  • English
  • Farsi
  • Ropes & Gray LLP:
    • Associate, 2010-2011