Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5613919 | Zero velocity gear mesh differential | — | 1997-03-25 |
| 5415595 | Differential gearing with phase adjustment | — | 1995-05-16 |
| 4832658 | Phase adjusting mechanism | Robert V. Hendershot | 1989-05-23 |
| 4832659 | Shaft support system | — | 1989-05-23 |
| 4788874 | Differential clutch | William DANFORTH | 1988-12-06 |
| 4739671 | Tapered worm | — | 1988-04-26 |
| 4644812 | Gear mechanism for brake adjustment | — | 1987-02-24 |
| 4630497 | Tapered worm | — | 1986-12-23 |
| 4582179 | Centrifugal brake assembly | — | 1986-04-15 |
| 4555963 | Torque limit drive transmission | — | 1985-12-03 |
| 4481842 | Torque limit drive transmission | — | 1984-11-13 |
| 4237571 | Floor polisher with gear drive | — | 1980-12-09 |
| 4214337 | Floor polisher | Wilfred C. Nise | 1980-07-29 |