Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7038330 | Protection for wind power station | Bernd Rosebrock, Hilmar Darrelmann, Reinhard Engelhardt, Detlev Seidel, Armin Klauenberg +1 more | 2006-05-02 |
| 6023152 | System for stabilizing a power supply system | Ralf Briest, Hilmar Darrelmann, Klaus Sachs | 2000-02-08 |