Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6653747 | Electronic key system including ignition and transmission control | David T. Proefke, Thomas E. Utter, Thomas W. Pfeffer, Jeffrey R. Coil, Andrew C. Brenz +4 more | 2003-11-25 |