Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9296302 | Charging device for an energy store and method for operating such a charging device | Peter Birke, Björn Demitter, Michael Schiemann, Hans-Georg Schweiger | 2016-03-29 |
| 7784772 | Spring system | Axel Knopp, Karl-Heinz Darscheid, Rainer Massmann, Rolf Mintgen, Torsten Rickenberg +4 more | 2010-08-31 |
| 7628255 | Gas spring | Holger Ansel, Meik Broeder, Stephan Enders, Alexander Koehl, Rainer Massmann +4 more | 2009-12-08 |
| 7431134 | Gas spring | Holger Ansel, Meik Broeder, Stephan Enders, Alexander Koehl, Rainer Massmann +4 more | 2008-10-07 |