William Cavanaugh

Patterson Belknap Webb & Tyler (New York)
Partner

William Cavanaugh is Co-Chair of the firm. His areas of concentration include antitrust, intellectual property and commercial litigation. A skilled trial attorney with extensive experience in both state and federal courts as well as in arbitration, Mr. Cavanaugh has served as national and trial counsel in several large multiparty antitrust, fraud and consumer protection litigations in federal and state courts across the United States brought by private plaintiffs and State Attorneys General. His clients include major pharmaceutical, medical device and financial services companies. Mr. Cavanaugh also recently served as Deputy Assistant Attorney General of the United States for Civil Enforcement in the Antitrust Division of the Department of Justice. Mr. Cavanaugh’s trial experience includes securing defense verdicts in a multi-billion dollar antitrust class action, civil fraud class actions and representing a plaintiff medical device manufacturer in back-to-back jury verdicts of $325 million and $271 million in patent infringement cases against two competitors. He has also successfully tried a number of Hatch-Waxman patent cases and represented a number of major health care companies in arbitrated contract disputes.

Linked authors

Patterson Belknap Webb & Tyler (New York)
Patterson Belknap Webb & Tyler (New York)
Patterson Belknap Webb & Tyler (New York)
Patterson Belknap Webb & Tyler (New York)

Articles

250 Bulletin

Jonathan H. Hatch, Robert P. LoBue, William Cavanaugh The US District Court for the Eastern District of New York reminds that potential defendants cases should be prepared to address a plaintiff’s “direct evidence” of harm to competition and may not be able to solely rely on its relative market share as a defence (American Express)

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Court Rules Against American Express Based on Both Direct and Indirect Evidence of Harm to Competition* On February 19, 2015, the District Court for the Eastern District of New York issued its ruling on liability in United States v. American Express. Following a seven-week trial, the Court (...)

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