Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6825584 | High-voltage electric rotary machine and a method for cooling the conductors of said machine | Stefan Kulig, Klaus Sedlazeck | 2004-11-30 |
| 5559442 | Process and sensor for measuring electric voltages and/or electric field intensities | Holger Hirsch | 1996-09-24 |
| 5237265 | Fiber optics arrangement for measuring the intensity of an electric current | Holger Hirsch | 1993-08-17 |