David K Callahan

Practice Areas

David Callahan, former Global Chair of the firm's Intellectual Property Practice, represents clients in complex litigation in the areas of patent, trade secret, false advertising, and unfair competition.

David represents clients in a range of industries, including medical devices, semiconductors, consumer products, telecommunications, and automotive products.

He develops winning strategies for clients based on his more than 30 years of experience as a trial lawyer, litigating bench and jury trials, as well as before the Federal and Seventh Circuit Courts of Appeal.