Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5682292 | Liquid-cooled valve reactor | — | 1997-10-28 |
| 5353005 | Liquid-cooled high-load resistor | — | 1994-10-04 |
| 4775848 | High-voltage valve reactor, specifically for high-voltage direct-current transmission systems | Reinhold Sundermann, Paul Kukert | 1988-10-04 |
| 4757366 | Light-triggerable thyristor having low-loss feed of the trigger energy | Reinhold Kuhnert, Heinz Mitlehner | 1988-07-12 |
| 4613727 | Electrical insulator column with fiber optic cable and gas supply tube | Norbert Hess | 1986-09-23 |