Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9771270 | Cold filament ignition system and method of silicon rods | Wilfried Vollmar, Casey Michael Wornath | 2017-09-26 |
| 7851942 | Circuit arrangement for supplying variable loads from three phases | Wilfried Vollmar | 2010-12-14 |
| 7279811 | Arrangement for supplying variable loads | Wilfried Vollmar | 2007-10-09 |