Retired Partner
David Callahan retired from the partnership in December 2024. He is the former Global Chair of the firm's Intellectual Property Practice. David represented clients in complex litigation in the areas of patent, trade secret, false advertising, and unfair competition.
David also represented clients in a range of industries, including medical devices, semiconductors, consumer products, telecommunications, and automotive products.
He developed 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.
Leading industry publications regularly recognize David's skill and accomplishments in intellectual property. Representative accolades include:
At the time of his retirement, David was a board member of Lawyers for the Creative Arts and the Public Interest Law Initiative, and served on the board of two youth hockey organizations. He also recently served as a member of the firm’s Recruiting Committee.
Latham earned a top three ranking in every antitrust category, including merger control, cartel, non-cartel, and private litigation.
Intellectual Property Partners honored as MVPs for securing a US$1.8 billion trade secrets settlement for LG Energy Solution in a dispute over electric vehicle batteries.
The firm has the most honorees for the second year in a row.