Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6371760 | Method and apparatus for welding orthodontic article and an orthodontic article | Tony Zavilenski, Ron Hagen, Yongjin Xie, Richard C. Sam | 2002-04-16 |
| 5295143 | Three color laser | Rama Rao, Victor Garkavy, Richard C. Sam | 1994-03-15 |