Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7583047 | Quenching device for a converter bridge with line regeneration | Thomas Biribauer, Franz Hackl, Heinz Pichorner, Wilhelm Ritschel, Franz Wohrer | 2009-09-01 |
| 7443129 | Quenching device for a converter bridge with line regeneration | Thomas Biribauer, Franz Hackl, Heinz Pichorner, Wilhelm Ritschel, Franz Wohrer | 2008-10-28 |