Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9951839 | Preloading device for a piston valve of a vibration damper | Helmut Baalmann, Hans Gonschorrek, Lothar Krill, Alexander Kruse, Oswald Lichtlein +4 more | 2018-04-24 |
| 7694786 | Damping valve with a directionally-dependent cross section | Harun Tucovic | 2010-04-13 |
| 7182190 | Vibration damper with fire safety device | Peter Wirth, Gerald Fenn, Björn Neumann | 2007-02-27 |
| 7121552 | Piston ring | Gerald Fenn | 2006-10-17 |
| 6840153 | Fire protection in a piston-cylinder unit | Peter Wirth, Wolfgang Bach, Gerald Fenn, Hans Luksch | 2005-01-11 |
| 6719297 | Piston ring, in particular for a piston of a vibration damper | Gerald Fenn, Matthias Höhn, Peter Wirth | 2004-04-13 |
| 6634379 | Switching valve with flow direction-dependent cross-section | Gerald Fenn, Hans Luksch | 2003-10-21 |
| 6540052 | Damping valve, in particular for a vibration damper | Gerald Fenn, Matthias Höhn | 2003-04-01 |
| 6336536 | Reversing valve with a passage which is dependent on the direction of flow | Gerald Fenn, Hans Luksch | 2002-01-08 |
| 6253661 | Piston rod guide for a piston-cylinder unit | Gerald Fenn | 2001-07-03 |
| 6079440 | Reversing valve with a cross section which is dependent on the direction of flow | Gerald Fenn, Hans Luksch | 2000-06-27 |
| 6018868 | Method for manufacturing a piston | Gerald Fenn, Hans Luksch | 2000-02-01 |