Glenn A. Gundersen

Glenn A. Gundersen is a nationally recognized authority in trademark and copyright law and intellectual property transactions, and the author of the leading legal treatise Trademark Searching, first published in 1994. Mr. Gundersen's clients in the United States and abroad hold some of the world’s largest trademark portfolios, and he has cleared and protected world-famous brands. He also advises clients on prosecution, fair use, licensing, IP acquisitions, opposition and cancellation proceedings, infringement disputes, and advertising and right of publicity law.

Mr. Gundersen has been named in numerous peer and bar surveys of the country’s top intellectual property lawyers. The Legal 500 has routinely ranked the firm’s trademark practice among the top in the U.S. for trademark advice and named Mr. Gundersen to The Legal 500 Hall of Fame in 2017. Describing him as “attracting the highest praise and enthusiasm,” client-commentators to The Legal 500 noted Mr. Gundersen’s “excellent business judgment,” “exceptional knowledge of trademark law,” “very good insight,” and “unusually high level of responsiveness.” Referring to him as “the guru for trademark searching,” The Legal 500 noted that “clients rave about the firm’s ability to handle everything in-house, keeping timeframes and costs to a minimum.”

In 2024 and 2023, Mr. Gundersen was ranked Band 1 by Chambers USA for IP in Pennsylvania, being described as having a “distinguished trademark background” and representing “household-name clients on matters including portfolio management, prosecution and licensing.” World IP Review named Mr. Gundersen a top IP lawyer in its WIPR Leaders 2024 guide. In 2021, Mr. Gundersen was named the inaugural Trademark Prosecutor of the Year in the Managing IP Americas Awards, and is routinely named an "IP STAR" for trademark in Pennsylvania by Managing Intellectual Property. Mr. Gundersen is also regularly ranked among the country’s top practitioners in Expert Guides' list of “The World’s Leading Experts in Trademark Law,” The International Who’s Who of Trademark Lawyers, World Trademark Review and Best Lawyers in America, and has previously been recommended by Who's Who Legal for IP - Trademarks.

Mr. Gundersen is the author of the book Trademark Searching (2nd Edition), an expert guide on clearance published by the International Trademark Association, and a co-author of the book Intellectual Property Assets in Mergers & Acquisitions, published by John Wiley.

Mr. Gundersen has been a frequent speaker at intellectual property seminars conducted by virtually every leading organization in the United States, including the American Bar Association, the Practicing Law Institute, the American Corporate Counsel Association, the International Trademark Association, the American Intellectual Property Law Association, the American Conference Institute, and the National CLE Conference, and intellectual property bar groups in several major cities.