Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6209499 | Retainer groove and variable resistance assembly | Nathan Owen, Thomas H. Lichti | 2001-04-03 |
| 6148780 | Hydraulic element assembly | Charles M. Philo, Albert C. Stone, William P. Vukovich | 2000-11-21 |