Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4493088 | Plasma melting furnace | Walter Lugscheider, Ernst Riegler, Ernst Zajicek | 1985-01-08 |
| 4436290 | Plasma melting furnace arrangement | Walter Lugscheider, Ernst Riegler, Ernst Zajicek | 1984-03-13 |