Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7613791 | Method for transmitting information over a radio network and for representing the information by means of a mobile transmitting/receiving station | — | 2009-11-03 |
| 6714860 | Navigation device with means for displaying advertisements | Ralph Behrens | 2004-03-30 |
| 6556917 | Navigation device for a land-bound vehicle | Ralph Behrens | 2003-04-29 |