Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5163887 | Weight collar | — | 1992-11-17 |
| 4271937 | Valves for hydraulic brakes | Christopher R. Ellis, Richard H. Gibbon, Walter R. Stirling | 1981-06-09 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5163887 | Weight collar | — | 1992-11-17 |
| 4271937 | Valves for hydraulic brakes | Christopher R. Ellis, Richard H. Gibbon, Walter R. Stirling | 1981-06-09 |