Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6042633 | Process for post-combustion of reaction gases produced during the vacuum processing of steel | Karl Brotzmann | 2000-03-28 |
| 5421563 | Slide closure for melting pots | Arno Luven | 1995-06-06 |
| 5096164 | Steel-processing vessel having a graphite rod heating means | Arno Luven | 1992-03-17 |
| 4872648 | Reaction vessel for processing steel | Arno Luven | 1989-10-10 |
| 4216347 | Vacuum-electric arc heating system | Arno Luven | 1980-08-05 |