Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6742629 | Valve control unit for a hydraulic elevator | Luigi Del Re, Andreas Schrempf | 2004-06-01 |
| 6510923 | Control method and apparatus for a hydraulic elevator using only load pressure data | Luigi Del Re | 2003-01-28 |
| 6422349 | Hydrostatic displacement drive for lifting and lowering and holding loads, in particular for lifts | — | 2002-07-23 |
| 6142259 | Method and device for controlling a hydraulic lift | Hubert Haussler, Daniel Moser, Roland Bisig, Richard von Holzen | 2000-11-07 |
| 5148735 | Electrohydraulic actuator | — | 1992-09-22 |