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D'Amato, John P.

John P. D'Amato

Senior Counsel
Direct Tel: +1 213-443-3135
Los Angeles
Tel: +1 213 443 3000 Fax: +1 213 443 3100

John D'Amato is a Senior Counsel in Quinn Emanuel's Los Angeles office.  He has been with the firm for more than 33 years.  Mr. D'Amato specializes in complex business litigation, particularly in areas of financial litigation, intellectual property and unfair competition law including trade secret. trademark, trade dress, patent, copyright, and false advertising disputes.

  • MassMutual
  • Mattel, Inc.
  • TCW
  • Samsung Electronics Co., Ltd.
  • Lockheed Corp.
  • General Motors
  • Delphi Automotive
  • Hughes Aircraft Company
  • World Market Center
  • Represented MassMutual in multiple actions alleging misrepresentations in the sale of residential mortgage-backed securities; actions involve securities originated and/or sold by Residential Funding Corporation, Deutsche Bank, Taylor Bean, Credit Suisse, Bear Stearns, and JPMorgan Chase, among others.
  • Represented TCW in highly publicized dispute with former Chief Investment Officer;  helped obtain verdicts of trade secret misappropriation, breach of fiduciary duty and interference with contract against former officer.
  • Obtained defense verdict in favor of American manufacturing company accused of breach of contract involving technology transfer arrangements with Chinese Government.
  • Obtained favorable settlements of multiple trademark disputes between owners of two well-established brands in which both companies' continued right to use their primary brand name was at issue.  The case settled after successful motion practice approximately one year after the firm was engaged.  The parties had litigated for more than eight years prior to the firm's involvement.
  • Obtained partial summary judgment in large scale trade secret case involving sophisticated flight simulators and associated software delivered to the U.S. Air Force and various foreign governments.
  • Successfully briefed extremely novel application of Lanham Act to trade secret dispute between General Motors and Volkswagen.
  • Obtained summary judgment in a pair of cases brought against Freddie Mac by large mortgage lenders who each claimed more than $100 Million in breach of contract losses.
  • Second chair in three-month jury trial resulting in a defense verdict on behalf of major defense contractor in action brought over sale of computer software subsidiary.
  • Class Action Litigation
  • Securities Litigation
  • Antitrust & Competition
  • Employment Litigation & Counseling
  • Trade Secret Litigation
  • Trademark, Trade Dress, Unfair Competition/False Advertising, and Publicity Rights Litigation
  • Boston College Law School
    (J.D., cum laude, 1989)
    • Boston College Law Review:
      • Managing Editor, 1988-1989
  • Georgetown University
    (B.A., cum laude, 1985)
  • The State Bar of California
  • The Best Lawyers in America, Litigation - Intellectual Property, 2024
  • Best Lawyers, Litigation - Intellectual Property 2023
  • Comment, "Statistical Evidence of a Manifest Imbalance in a Traditionally Segregated Job Category Can Protect a Voluntary Affirmative Action Plan from a Title VII Challenge: Johnson v. Transportation Agency," 30 B.C.L. Rev. 271 (1988)
  • "Selected Developments in Massachusetts Corporate Law," 30 B.C.L. Rev. 748 (1989)