U.S. federal trademark · Serial No. 74467161
television, video, films, motion pictures, video games and all other electronic and interactive media forms for both educational and entertainment markets; "EC" is an arbitrary mark which has no other significance than to denote certain "environmentally correct" characteristics of a certain group of children's characters
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.