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Brendan O'Rourke is co-Chair of the firm’s Litigation Department and co-head of the False Advertising & Trademark Group. From the inception of his career, Brendan has concentrated in the field of trademark, false advertising, and unfair competition law, and has provided day-to-day trademark, false advertising, and Lanham Act counseling to many Fortune 500 clients, as well as start-up companies and entrepreneurs. He is a first-rate, first-chair trial lawyer, having successfully tried numerous trademark, trade dress, unfair competition, false advertising, copyright and entertainment cases involving diverse products and companies, and has significant experience in obtaining emergent relief, including preliminary injunctions, temporary restraining orders, seizure orders, and ex parte relief.

His experience includes all phases of trademark and false advertising counseling and litigation, including complex issues involving consumer survey research and claim substantiation, and inter partes proceedings before the U.S. Trademark Trial and Appeal Board and the Federal Circuit.

Brendan is also a very experienced commercial litigator and has represented a diverse array of well-known clients in state and federal courts throughout the United States.

Brendan is a frequent lecturer, has had numerous articles published in the fields of trademarks, false advertising, copyrights, and patents, and has appeared on national television to discuss trademark litigation. He has chaired INTA's advanced forum on the Trademark Law and Revisions Act, INTA's third annual "Trademarks in Cyberspace" forum, INTA's Annual Leadership Meeting, as well as INTA's Annual Basics Forum. He also has served on many INTA project teams, including the joint forum between INTA and NAD on false advertising, where he led a discussion and panel on claim substantiation. Brendan is also a frequent lecturer for the AIPLA and NYIPLA.

In addition to his vast experience trying cases, Brendan has significant experience in mediation through both the federal courts and the INTA panel of neutrals for clients such as Kraft, Estee Lauder, Madonna, Bristol-Myers Squibb, Federal Signal, and EMI. Brendan's experience includes Internet and domain name disputes, including successful ICANN proceedings for Madonna, Estee Lauder, Donald Trump, and Shania Twain, and self-regulatory advertising arbitrations before the National Advertising Division ("NAD") and the National Advertising Review Board ("NARB") of the Better Business Bureau on behalf of clients such as Colgate-Palmolive, Bristol-Myers Squibb, SC Johnson, Mead Johnson, and Bausch & Lomb.

Brendan has tried and been involved in a variety of cases and reported decisions of interest in his field, including Stark v. Diageo Chateau & Estate Wines; Taymor v. 8 Legged Production; Jackson Family Wines v. Diageo Chateau & Estate Wines; Buday v. The New York Yankees; Major League Baseball v. Upper Deck; Anheuser-Busch v. Major League Baseball; GlaxoSmithKline v. Colgate-Palmolive; Mendenhall v. Hanesbrands; The London Group v. SiTV; Lester v. U2; Brando Estate v. Madonna; Perot Government Systems v. 21CSI; Colgate v. P&G; Guinness v. Anheuser-Busch; Extreme Color v. Clairol; TT Sounds Good v. Tommy Lee; EMI v. Hill Holiday; Emergency One v. American Fire Eagle; RIAA v. Napster; Parisi v. Madonna; Platypus v. Bad Boy and Sean John; SC Johnson v. Clorox; Phillip Morris v. Allen; Elk v. GAF; Fabrications v. Hygenic; Bristol-Myers v. McNeil Labs; Kunycia v. Kay Bee Toy Stores; L.A. Gear v. Thom McAn; Vision Street Wear v. Melville; Edison Bros. v. Cosmair, McDonald's Corp. v. McBagels, and MasterCard v. American Express.

Recognized in Chambers USA and US Legal 500, Brendan is praised for "serving his clients aggressively and effectively” and is recommended for his “sound, practical advice.”