Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5231892 | Hitch control interface assembly | — | 1993-08-03 | $8,143,000 |
| 5224395 | Transmission shift lever neutral lock | — | 1993-07-06 | $4,135,000 |
| 4650048 | Control system for transmission engagement | Stanley M. Gregerson, Timothy Mattson | 1987-03-17 | $7,011,000 |
| 4500874 | Filter monitoring system | Stephen F. Jacobi, John Wayne Schletzbaum, Yolanda E. Martin, Stephen P. Lang | 1985-02-19 | $6,367,000 |
| 4421218 | Relief valve means for rotatable fluid-pressure mechanisms | — | 1983-12-20 | $15,001,000 |
| 4411345 | Clutch modulating system | Kendall D. Tjepkes | 1983-10-25 | $7,550,000 |
| 4186777 | Pressure vessel retained energy measurement system | Lawrence R. Klope | 1980-02-05 | $2,284,000 |