Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5109721 | Range shifting only fault tolerance method/system | Mark D. Boardman | 1992-05-05 |
| 5092187 | Auxiliary transmission shift control system | — | 1992-03-03 |
| 4916979 | On-grade shift logic with provision for skip downshifts | — | 1990-04-17 |