Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4678240 | Rear spring actuated brake proportioner | — | 1987-07-07 |
| 4650258 | Rear spring actuated brake proportioner | — | 1987-03-17 |
| 4583789 | Rear spring actuated brake proportioner | — | 1986-04-22 |
| 4533157 | Rear offset axle suspension system for vehicle | Walter A. Hoenle, David J. B. Perkins | 1985-08-06 |