Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7530281 | Gear set for differential gear shafts of an internal combustion engine | Helmut Kratochwill, Walter Reisinger, Reinhard Ratzberger | 2009-05-12 |
| 6997077 | Method for obtaining a desired tooth flank backlash | Wolfgang Kollmann, Helga Kollmann, Helmut Kratochwill, Walter Reisinger, Reinhard Ratzberger | 2006-02-14 |