1701 Market St.\\Philadelphia, PA 19103-2921\\United States
William P. Quinn Jr. litigates complex commercial disputes in US federal and state court and also represents clients in international arbitrations. Representing both plaintiffs and defendants, Bill’s practice has a particular emphasis on intellectual property, securities, antitrust, and mergers and acquisition litigation, as well as disputes involving software and computer technology. His clients include manufacturing, pharmaceutical, education, media, and information technology companies. Bill is consistently listed among The Best Lawyers in America.
University of Pittsburgh v. Varian Medical Systems, Inc. Obtained judgment in excess of $100 million for major public research university following trifurcated jury trial on claims for infringement of university’s patent on device used in treating cancer patients
In re Dynamic Random Access Memory Devices, And Products Containing Same. Prevailed on claims for infringement of semiconductor memory chip patents following trial before International Trade Commission administrative law judge.
Gaynor v. eCollege.com et al. Successfully defended a multinational publisher in the Chancery Court of Delaware against a shareholder suit seeking to block a $3.4 billion merger.
In re GPC Biotech AG Securities Litigation. Defeated securities fraud claims asserted in putative nationwide class action against German pharmaceutical company in New York federal court
Sandvik AB v. Advent International, Inc. Prevailed in multimillion-dollar arbitration before the Netherlands Arbitration Institute arising from failure of US private equity funds to consummate purchase from Swedish multinational corporation of manufacturing subsidiaries in Italy, Japan and the US
In re FreeMarkets Securities Litigation. Successfully defended leading provider of B2B online procurement services in $100+ million putative class action lawsuit asserting securities fraud in connection with client's initial public offering.
Westwood One Radio Networks, Inc. v. IDB Worldcom, Inc. Obtained multimillion-dollar recovery for major US radio broadcaster in California state court action for breach of satellite transmission services agreement.
ProtoComm Corp. v. Novell, Inc. Successfully defended Novell in an antitrust suit alleging that it used monopoly power in the alleged market for the sale of network operation systems to exclude competition in the alleged market for the development and sale of video server software.
FreeMarkets v. Vesper S.A. Prevailed in international arbitration in Portugal against Brazilian telecommunications carrier on claims stemming from breach of electronic procurement services contract. Recovery of $1.7 million.
Cytokine PharmaSciences, Inc. v. Convergence Pharmaceuticals, Inc., et al. Successfully represented biotech company in Massachusetts state court action against 99pharmaceutical company and former officer asserting claims for misappropriation of intellectual property, tortious interference and unfair trade practices.
Westwood One Radio Networks, Inc. v. StarGuide Digital Networks, Inc. Successfully represented major US radio broadcaster in antitrust suit seeking injunctive relief and damages from supplier of satellite transmission equipment and software.
Awards and Affiliations
Recognized, Litigation – Securities, Philadelphia, The Best Lawyers in America (2008–2020)