Douglas N. Doug Masters

Advertising Law

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Chicago, Illinois

37+ years experience

Loeb & Loeb LLP

Updated: Dec 25, 2025

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Bio

Douglas Masters litigates and counsels clients primarily in the areas of intellectual property, advertising and unfair competition. He helps brand owners, sports leagues, athletes and advertisers protect and leverage their branding, marketing and other IP assets. Notably, he has worked with the National Collegiate Athletic Association for nearly 20 years on brand protection strategy, helping strengthen the organization’s ability to support college athletics. Doug has counseled major corporations and prominent individuals in a variety of matters involving trademark and copyright clearance, registration and policing, and enforcement. He handles and litigates consumer protection issues, such as allegations of deceptive or unfair advertising and marketing practices, and unfair competition. Doug also has notable experience advising companies in domain name protection and enforcement proceedings, and matters and litigation relating to the unique issues of online marketing and advertising. In addition to representing clients in courts, he practices regularly before the Trademark Trial and Appeals Board. Clients appreciate Doug’s collaborative approach, noting that he “surrounds himself with quality individuals” and “his team is extremely bright.” Doug values his relationships with his colleagues, and enjoys working with attorneys and professionals at all levels to gain varied perspectives on each matter in order to provide clients with the best possible solutions. Throughout his career, Doug has taught law, including at Northwestern University and University of Chicago law schools. He provides pro bono counsel for GreenAmerica, which harnesses economic power to promote a socially just and environmentally sustainable society, and for Lawyers for the Creative Arts in Chicago, where he is a member of the board.