Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9021697 | Housing member for clutch mechanism | Joseph E. Kandell, David D. Martinson | 2015-05-05 |
| 8459431 | Housing member for clutch mechanism | Joseph E. Kandell, David D. Martinson | 2013-06-11 |
| D656960 | Clutch mechanism with annular ridge | Joseph E. Kandell, David D. Martinson | 2012-04-03 |