Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7784772 | Spring system | Axel Knopp, Karl-Heinz Darscheid, Stefan Bonnekessel, Rainer Massmann, Rolf Mintgen +4 more | 2010-08-31 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7784772 | Spring system | Axel Knopp, Karl-Heinz Darscheid, Stefan Bonnekessel, Rainer Massmann, Rolf Mintgen +4 more | 2010-08-31 |