Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7172640 | Method and device for melting down metal-containing materials | Harald Berger, Peter Mittag | 2007-02-06 |
| 5900209 | Plant for producing metal melts | Harald Berger, Peter Mittag | 1999-05-04 |
| 5844933 | Electrode arrangement for direct current and furnace | Harald Berger, Peter Mittag | 1998-12-01 |