John Patterson, D.D.S.Logo Design Contest Logo Design Contest Contests / John Patterson, D.D.S. John Patterson, D.D.S. has selected their winning logo design. For $325 they received 183 designs from 36 different designers from around the world. Find out how LogoTournament works How LogoTournament works Contest Entries by dometo Return to Contest Return to Contest Prefers others. #156 Discussion No comments yet.