Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6071154 | Removeable connection of a high-voltage cable with a collector rail-type connector | — | 2000-06-06 |
| 5297159 | Direct current-light arc furnace | Emil Elsner | 1994-03-22 |
| 4442525 | Electrode for arc furnaces | Dieter Zollner, Friedrich Rittmann, Johannes Haremsa, Georg Bauer, Josef Otto +2 more | 1984-04-10 |