Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8058574 | Auxiliary contact block for expanding a switching device | Josef Graf, Johannes Voit | 2011-11-15 |
| 7978036 | Method and device for the secure operation of a switching device | Robert Adunka, Peter Hartinger, Bardo Koppmann, Norbert Mitlmeier, Fritz Pohl +2 more | 2011-07-12 |
| 7872552 | Method and device for the secure operation of a switching device | Robert Adunka, Peter Hartinger, Bardo Koppmann, Norbert Mitlmeier, Fritz Pohl +2 more | 2011-01-18 |