Mr. O'Neill's practice concentrates on counseling and litigation in the areas of trademark, copyright, and unfair competition law. His trademark counseling provides recommendations on trademark selection, usage, and protection.

Before becoming an attorney, Mr. O'Neill worked in the advertising agency business, first with J. Walter Thompson Company in Chicago and later as a Vice President of D'Arcy Masius Benton & Bowles in St. Louis. He helped develop and execute advertising and marketing strategies for a large number of brand names belonging to a diverse group of clients, including Anheuser-Busch, Inc., Brown Shoe Company, ConAgra Foods, Enterprise-Rent-A-Car, Kal Kan Pet Foods, Kraft Foods, M&M/Mars, Northwestern Mutual Life Insurance, Pillsbury, Procter & Gamble and Trans World Airlines.