Martial Art Instructor Charged and Arrested For Trademark Counterfeiting
New York martial art instructor Sung Yoon had engaged in trademark counterfeiting and distribution of trademark counterfeited rank certificates for quite some time without being detected.
He issued certificates to his students bearing registered trademarks affixed without a license from the trademark owners. His students trusted him and believed him until an instructor contacted one of the organizations they had received rank certificates from to confirm that their rank certificate was legitimate; however, it was not.