Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6425747 | Gearing with mating internal and spur gears | Marco Grethel | 2002-07-30 |
| 6179595 | Hydraulic gear machine having a transmission shaft in a bearing tube | — | 2001-01-30 |
| 5674060 | Hydraulic internal gear machine having a fluid pressure biased sealing plate | Reinhard Pippes | 1997-10-07 |
| 4780071 | Internal gear machine having segmented, pivotal filler members | — | 1988-10-25 |
| 4778363 | Internal-gear machine having segmented, pivotal filler members | — | 1988-10-18 |
| 4472123 | Internal gear machine with segmented filler members | Otto Eckerle | 1984-09-18 |