Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6903911 | Protective circuit for a network-controlled thyristor bridge | Leo Karl, Heinz Pichorner, Franz Wohrer | 2005-06-07 |
| 5202621 | Current transformer arrangement for three-wire three-phase systems to detect the actual current value for controlled DC loads powered via power converters | — | 1993-04-13 |
| 4540926 | Circuit arrangement for an alternating control | Walter Kolzer | 1985-09-10 |