Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7289018 | Method for distance alert and distance alerting unit | Frank Ewerhart, Clemens Guenther, Thomas Wittig | 2007-10-30 |
| 7259660 | Device for determining the passability of a vehicle | Frank Ewerhart, Clemens Guenther, Thomas Wittig | 2007-08-21 |