Warren has extensive experience handling complex commercial litigation in a variety of areas including patent and intellectual property disputes, federal and state securities claims, professional malpractice and commercial contract disputes.
His experience includes the defense of accounting firms against claims of professional malpractice, and the defense of financial institutions and their management. He has handled patent, trademark, copyright, trade secret and other intellectual property litigation. He has tried trademark and other intellectual property cases both with and without juries, including the successful defense of manufacturers against trade dress infringement claims.
Warren has taught at the University of Richmond Law School as an adjunct professor of law. He is also a former chair of the commercial litigation department and a former member of the Board of Partners.
Defense of patent litigation for several manufacturers and distributors resulting in favorable settlements.
Defense of a furniture manufacturer on trade dress claims asserted by a competitor and obtaining a jury verdict for the client.
Defense of a telecommunications company against contract and tort claims by a vendor resulting in a jury verdict for the client.
Defense of a national accounting firm against claims of professional malpractice by a financial institution and obtaining a jury verdict.
Representation of a Fortune 500 company in defense of an ERISA class action and related securities claims arising from a drop in the company’s stock. Attained favorable settlements.
Named "Lawyer of the Year," Litigation - Securities, Richmond, Best Lawyers, 2017
Selected for inclusion in The Best Lawyers in America, Commercial Litigation, Litigation-Intellectual Property, Litigation-Securities, Woodward/White, Inc., 2005-2020
Named to “Washington D.C. Super Lawyers,” Intellectual Property Litigation, Securities Litigation, Business Litigation, Super Lawyers, Thomson Reuters, 2009-2013
Named to “Virginia Super Lawyers,” Intellectual Property Litigation, Securities Litigation, Business Litigation, Super Lawyers, Thomson Reuters, 2008-2012
Named to "Legal Elite," Virginia Business, 2010