Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7712754 | Vehicle front end suspension | — | 2010-05-11 |
| 7573375 | Rollover prediction and warning method | — | 2009-08-11 |
| 6758302 | Low vibration driveline | — | 2004-07-06 |
| D443848 | Truck frame crossmember | Kenneth S. Fischer, David A. Melton, Jonathan L. Land | 2001-06-19 |
| D436558 | Truck frame crossmember | Kenneth S. Fischer, David A. Melton, Jonathan L. Land | 2001-01-23 |
| 6149142 | Pneumatic vehicle suspension system with variable spring stiffness | — | 2000-11-21 |
| 5374077 | Pneumatically damped vehicle suspension system | Donald L. Stephens | 1994-12-20 |
| 5246242 | Passively steered tandem axle group | — | 1993-09-21 |
| 5201379 | Flat-floor high roof cab-over-engine tractor | James Saunders | 1993-04-13 |
| 4465299 | Vehicle suspension with load-controlled damping and load-controlled damper | Thomas R. Stone | 1984-08-14 |
| 4452329 | Suspension for a truck tilt cab | Thomas R. Stone | 1984-06-05 |
| 4276953 | Shift linkage for a tilt cab truck | Gordon F. Schmeisser | 1981-07-07 |