Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D388927 | Traction ramp device | — | 1998-01-06 |
| 5163538 | Low level damping valve and method for a semi-active hydraulic damper | Randall L. Derr, Stephen E. Dourson, Chris Keller | 1992-11-17 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D388927 | Traction ramp device | — | 1998-01-06 |
| 5163538 | Low level damping valve and method for a semi-active hydraulic damper | Randall L. Derr, Stephen E. Dourson, Chris Keller | 1992-11-17 |