Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7784772 | Spring system | Axel Knopp, Karl-Heinz Darscheid, Stefan Bonnekessel, Rainer Massmann, Rolf Mintgen +4 more | 2010-08-31 |
| 7490587 | Portable handheld work apparatus | Heiko Rosskamp, Georg Maier, Volker Reber, Alexander Erkert, Daniel Herbst +1 more | 2009-02-17 |