Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8057351 | Planetary gear device with two sun gears having different diameters | Karl Benkler, Klemens Humm, Klaus-Peter Brenner | 2011-11-15 |
| 7305901 | Rack-and-pinion steering | Jens-Uwe Hafermalz, Rainer Schaenzel, Karl Benkler, Hartmut Specht, Hermann Ocker | 2007-12-11 |