Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5891277 | Automotive tire inflation system | — | 1999-04-06 |
| 5611875 | Automotive tire inflation system | — | 1997-03-18 |
| 5411450 | Transit clutchless shifting of an auxiliary transmission | Andrew B. Gratton, LeRoy A. Maxfield, Jeffrey M. Miller | 1995-05-02 |
| 5217083 | All wheel steering system | Donald H. Verhoff | 1993-06-08 |
| 5111901 | All wheel steering system | Donald H. Verhoff | 1992-05-12 |