Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8506358 | Method for the operation of a gear or profile grinding machine and gear or profile grinding machine | Wieland Amarell, Alfred Tenner, Friedrich Woelfel | 2013-08-13 |
| 7632172 | Hard finishing machine | Friedrich Woelfel | 2009-12-15 |
| 6288634 | Audio system for vehicles, in particular for motor vehicles | Reinhard Lendholt, Detlev Beyer, Olaf Pawlitzki, Otto Schonemann | 2001-09-11 |
| 6073064 | Device and process for limiting access to authorized users | Reimund Konrad, Wilfried Petsching | 2000-06-06 |
| 6020827 | Authentication device with key number memory | Reimund Konrad, Wilfried Petsching | 2000-02-01 |