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Marc De Leeuw joined Sullivan & Cromwell in 1994 and has been a partner since 2001. His litigation practice includes representing clients in a variety of areas, including on intellectual property, antitrust, securities, insurance and many other commercial matters. Mr. De Leeuw has represented clients before arbitration tribunals, New York state trial and appellate courts, numerous federal district courts and Courts of Appeals and the United States Supreme Court. He has participated in trials and arbitration hearings in intellectual property, antitrust, tort and insurance cases. Mr. De Leeuw is also a Coordinator for the Firm s public service activities. Selected Intellectual Property Cases Represents Philips Electronics in patent infringement actions, including at trial and appeal on Philips patents on universal remote control technology and in actions involving Philips patents on CD and DVD technology. Represented Dyson in patent infringement and false advertising litigation concerning the design of its vacuum cleaners and advertising claims. Represented Labatt in a patent infringement action, including at trial, involving its patent on a method for brewing ice beer. Represented Fonar, a manufacturer of MRI scanners, in a successful appeal to the U.S. Court of Appeals for the Second Circuit seeking to protect Fonar s copyright on its maintenance software. Selected Antitrust Cases Represented Microsoft in a variety of private antitrust and related matters, including at a preliminary injunction hearing and seven-week trial in successfully defending against an antitrust action brought by Bristol Technology; in an antitrust and copyright action brought by Sun Microsystems, including through a preliminary injunction hearing and appeal; and in an antitrust action brought by Netscape Communications. Represented Fonar at trial in successful defense of antitrust claims alleging monopolization of an alleged market for service of Fonar MRI scanners. Selected Securities Matters Represents Barclays in the nationwide Enron litigation, including a securities class action and related proceedings. Represents various mutual funds and their directors in investigations and civil actions concerning Board decisions and fund practices. Represents Cablevision in shareholder derivative and class actions concerning options backdating and going private offers. Selected Other Commercial Matters Represents Oxford Health Plans (now part of UnitedHealth Group) in a variety of matters related to health insurance and reinsurance, including in arbitrations over rescission claims made by reinsurers and in a variety of private and class actions and class arbitrations brought by physicians and medical societies concerning Oxford s reimbursement policies and practices. Represented The Bank of New York in investigations and civil actions concerning the Bank s business with certain Russian customers. Represented Softbank in connection with contract, tort and fiduciary duty claims brought by a video game development company in which Softbank invested. Professional Activities and Community Involvement Served on the City Bar Association Judiciary Committee. Speaker at professional conferences concerning investment company and patent litigation. Works with numerous public interest organizations with which the Firm regularly coordinates on public interest and pro bono work. | 