Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4452331 | Vehicle axle | Royston C. Lunn, Robert C. Grabowski, Dennis N. Renneker, John M. Winkler | 1984-06-05 |
| 4381828 | Vehicle drive system having first and second operating modes and method of operating same | Royston C. Lunn, Robert C. Grabowski, Dennis N. Renneker, John W. Winkler | 1983-05-03 |
| 4373604 | Transfer case | Royston C. Lunn, Robert C. Grabowski, Dennis N. Renneker, John M. Winkler | 1983-02-15 |