Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D282729 | Single seat sports car | — | 1986-02-25 |
| 4452331 | Vehicle axle | J. Edwin MacAfee, 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 | J. Edwin MacAfee, Robert C. Grabowski, Dennis N. Renneker, John W. Winkler | 1983-05-03 |
| 4373604 | Transfer case | J. Edwin MacAfee, Robert C. Grabowski, Dennis N. Renneker, John M. Winkler | 1983-02-15 |