Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12044287 | Temperature-driven valve assembly | Joshua Burrell, Karl Seibert, Arnold Schilz | 2024-07-23 |
| 6959797 | Piston-cylinder assembly with braking device | Rolf Mintgen | 2005-11-01 |
| 6170806 | Piston/cylinder assembly | Rolf Mintgen, Oliver Greb | 2001-01-09 |
| 6112867 | Detent device between objects that are movable relative to one another | Rolf Mintgen, Oliver Greb | 2000-09-05 |
| 6007057 | Gas spring with braking means | Klaus Koch, Horst Maury, Karl Seibert, Michael Rudesheim | 1999-12-28 |
| 5944290 | Rotationally secured column | Peter Thurmann | 1999-08-31 |
| 5839719 | Pneumatic strut for a motor vehicle with an adjustable limit position | Hans-Josef Hosan, Hans-Klaus Schnitzius | 1998-11-24 |
| 5497966 | Column unit, in particular a chair column unit | — | 1996-03-12 |
| 5377942 | Column unit | Axel Knopp, Andreas Binder, Hans-Josef Hosan | 1995-01-03 |
| 5275386 | Positioning device | Klaus Schnitzius, Ulrich Baum | 1994-01-04 |
| 5154264 | Fluid filled cylinder piston device | Gregor Poertzgen | 1992-10-13 |
| 5126925 | Construction assembly including a telescopic strut | Rolf Mintgen, Gregor Poertzgen, Michael Schuth | 1992-06-30 |
| 5074390 | Cylinder piston device | Alfred K. Klein, Heinz-Josef Heinrichs, Udo Wagner | 1991-12-24 |
| 5048647 | Container piston rod unit | Herbert Freitag | 1991-09-17 |
| 5012996 | Length variable and lockable positioning device | Gregor Poertzgen, Hans-Josef Hosan | 1991-05-07 |
| 4973097 | Construction assembly including a gas spring | Hans-Josef Hosan, Bernd Kortgen | 1990-11-27 |
| 4944498 | Gas spring | Bernd Kortgen, Helmut Morgen, Heinz-Josef Heinrichs, Herbert Freitag | 1990-07-31 |
| 4867317 | Positioning device | Willi Wildemann, Helmut Morgen, Martin Siemann, Jurgen Kessler, Herbert Freitag | 1989-09-19 |
| 4830432 | Positioning device | Hans-Josef Hosan, Axel Knopp, Gerd Wurges | 1989-05-16 |
| 4709790 | Continuously adjustable length adjustment device | Herbert Freitag, Hans-Josef Hosan | 1987-12-01 |
| 4651979 | Temperature-compensated gas spring | Herbert Freitag, Bernd Kortgen | 1987-03-24 |