Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6479908 | Apparatus and method for sensing positions of an ignition switch | Carol L. Daprai, Kerfegar K. Katrak, David T. Proefke, Thomas M. Forest, Michael J. Kachman | 2002-11-12 |
| 6386447 | Smart card with card in vehicle warning | David T. Proefke, Robert Baillargeon, Thomas W. Pfeffer, Jeffrey R. Coil, Andrew C. Brenz +4 more | 2002-05-14 |