Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8467161 | Device for protecting a DC voltage converter | Michael Hofmann, Edmund Schirmer, Peter Mühlenbrock, Wilhelm Berg | 2013-06-18 |
| 6879164 | Method and device for insulation monitoring of a DC network | Hubert Urban | 2005-04-12 |