Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10094253 | Valve device for a hydraulic circuit and oil pump regulating arrangement | Rolf Lappan, Christoph Sadowski, Turgut Yilmaz | 2018-10-09 |
| 9803772 | Valve device for a hydraulic circuit and oil pump control apparatus | Rolf Lappan, Christoph Sadowski | 2017-10-31 |
| 9334978 | Valve device for a hydraulic circuit, and oil-pump regulating arrangement | Rolf Lappan, Werner Buse, Christoph Sadowski | 2016-05-10 |