Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6501355 | System having a switching device and an evaluation device for determining a remaining service life of a contact piece | Matthias Fenner, Frank Berger, Bernd Koehler | 2002-12-31 |
| 6501356 | Method for determining the remaining service life of the switch contacts in an electric switching device and electric switching device with an evaluation unit for carrying out said method | Matthias Fenner, Frank Berger, Eckhardt Pridoehl | 2002-12-31 |