Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6701277 | Elevator car position sensing system | Steven D. Coste, Jason S. Stone, Julian H. Shull Jr., Kim Ngoc Trinh, William G. Edgar +1 more | 2004-03-02 |
| 4397359 | Tractor hitch with yoke having pivotally supported upper end | David Price, Carl E. Kittle | 1983-08-09 |
| 4271910 | Draft sensing device including load pin with free end | — | 1981-06-09 |
| 4219212 | Tractor implement hitch | — | 1980-08-26 |
| 4216975 | Tractor hitch | — | 1980-08-12 |