Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9117598 | Latching device for a circuit breaker | Volker Heins, Gregor Fleitmann, Hans-Juergen Mader, Wolfgang Kutsche | 2015-08-25 |
| 5120529 | Water-based nail polish | Richard Rassek | 1992-06-09 |
| 4931093 | Marker or felt tip pen | Matthias Brenke | 1990-06-05 |