Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE36834 | Electrical switch | Thomas Kossakowski, Hubert Gerbersmann, Hans-Joachim Frohne, Stefan Müller | 2000-08-29 |
| 5565663 | Electrical Switch | Thomas Kossakowski, Hubert Gerbersmann, Hans-Joachim Frohne, Stefan Müller | 1996-10-15 |