Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7299129 | Portable navigation device with releasable antenna | Robert M. Kalis, David F. Lammers-Meis, Christopher J. Hanshew, Thomas H. Walters | 2007-11-20 |
| 7243025 | Portable navigation device with instant on configuration on navigational display | Christopher J. Hanshew, Thomas H. Walters | 2007-07-10 |
| 7099775 | Portable navigation device with instant on configuration on navigational display | Christopher J. Hanshew, Thomas H. Walters | 2006-08-29 |