Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7172640 | Method and device for melting down metal-containing materials | Harald Berger, Bernhard Aigner | 2007-02-06 |
| 6477195 | Process for melting sponge iron and electric-arc furnace for carrying out the process | Harald Berger | 2002-11-05 |
| 5900209 | Plant for producing metal melts | Bernhard Aigner, Harald Berger | 1999-05-04 |
| 5844933 | Electrode arrangement for direct current and furnace | Bernhard Aigner, Harald Berger | 1998-12-01 |
| 5835524 | Scrap-melting electric arc furnace | Harald Berger, Heinrich Auberger, Peter Wimmer, Johann Auer, Alfred Weber +1 more | 1998-11-10 |
| 5573573 | Electric arc furnace arrangement for producing steel | Harald Berger, Johannes Steins, Gert Pfeiffer | 1996-11-12 |
| 5529598 | Bottom anode for a metallurgical vessel | Harald Berger, Johannes Steins | 1996-06-25 |
| 5471495 | Electric arc furnace arrangement for producing steel | Harald Berger, Johannes Steins, Gert Pfeiffer | 1995-11-28 |
| 5410566 | Method of producing metal melts and an electric arc furnace therefor | Johannes Steins, Harald Berger | 1995-04-25 |