Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9234534 | Liquid piston arrangement with plate exchanger for the quasi-isothermal compression and expansion of gases | — | 2016-01-12 |
| 6145311 | Pneumo-hydraulic converter for energy storage | — | 2000-11-14 |
| 4958690 | Drilling device with hydraulic percussion generator for earth drilling purposes | — | 1990-09-25 |
| 4948341 | Water pumping system including a suction ram | — | 1990-08-14 |
| 4664145 | Device for delivering a pressurized medium to a rotatable part | Bodo Stich, Ernst Hassler | 1987-05-12 |
| 4597483 | Hydrostatic clutch | Louis-Claude Porel | 1986-07-01 |
| 4593715 | Hydraulic controllable two-port valve for a liquid stream | Bodo Stich, Ernst Hassler, Slawomir Adamowicz | 1986-06-10 |
| 4577739 | Hydrostatic clutch | — | 1986-03-25 |
| 4549862 | Hydraulic pump for low-viscosity pumping media | Bodo Stich, Ernst Hassler | 1985-10-29 |
| 4481976 | Apparatus for passing a pressure medium from a stationary housing to a rotatable shaft | — | 1984-11-13 |
| 4411646 | Decanter centrifuge having differential drive unit | — | 1983-10-25 |
| 4404895 | Fluid pressure unit with hydrostatic torque transmission by roller pistons | — | 1983-09-20 |
| 4265267 | Flow control device for use with positive displacement pump | — | 1981-05-05 |
| 4205821 | Multi-way rotary valve for a fluid under pressure | — | 1980-06-03 |