Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9991832 | Detecting brushfire in power systems | Martin Graefling, Guenter Hofer | 2018-06-05 |
| 9929685 | Safety circuit and brush holder for preventing fault conditions in an alternator | Martin Graefling | 2018-03-27 |
| 9887655 | Excitation current-limited power generator | Frank Auer, Robert Hartmann, Ludovic Doffe, Cédric Agneray | 2018-02-06 |