Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5735371 | Cylinder piston device | Klaus-Dieter Jobelius, Heinrich Spurzem, Stefan Volpel | 1998-04-07 |
| 5485987 | Cylinder piston device | Klaus-Dieter Jobelius, Heinrich Spurzem, Stefan Volpel | 1996-01-23 |
| 5358225 | Telescopic spring unit | Stefan Volpel, Errick G. Morris | 1994-10-25 |
| 5335949 | Telescopic positioning device | Horst Maury | 1994-08-09 |
| 4944498 | Gas spring | Bernd Kortgen, Heinz-Josef Heinrichs, Castor Fuhrmann, Herbert Freitag | 1990-07-31 |
| 4867317 | Positioning device | Willi Wildemann, Castor Fuhrmann, Martin Siemann, Jurgen Kessler, Herbert Freitag | 1989-09-19 |