Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12392410 | Piston, gear-change selector module and mounting method | Jürgen Ryba, Gerhard Warmuth, Ralph Berger | 2025-08-19 |
| 7493849 | Hydraulic cylinder, in particular slave cylinder for a hydraulic clutch actuation system for motor vehicles | Egid Macht, Hubert Derra, Jürgen Ryba | 2009-02-24 |
| 7287376 | Hydraulic cylinder, in particular slave cylinder for a hydraulic clutch actuation system for motor vehicles | Egid Macht, Hubert Derra, Jürgen Ryba | 2007-10-30 |
| 7216752 | Hydraulic cylinder | Hubert Derra, Wolfgang Schor, Robert Muller | 2007-05-15 |