T&L renews Challenge Coin license to use AF Symbol Published Aug. 6, 2014 By Staff Report Air Force Public Affairs Agency Trademark and Licensing JOINT BASE SAN ANTONIO, LACKLAND, Texas -- The Air Force Trademark and Licensing Office has approved the renewal application of Challenge Coin Company, LLC as a licensed vendor of Air Force merchandise. Challenge Coin has been officially licensed by the Air Force since 2009 and offers coins and coin display bases that feature the Air Force symbol, emblem and word marks. The best way for consumers to support the U.S. Air Force when they're purchasing merchandise is to look for the "officially licensed" label on products and only buy from companies holding official licenses. For that list, visit http://www.trademark.af.mil/licenseholders/index.asp. For more information on the Air Force Trademark and Licensing program, visit www.trademark.af.mil.