Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5054033 | Tiltable arc furnace | Bodo Wronka, Heinrich Schnitzer, Rolf Baare, Josef Otto | 1991-10-01 |
| 4518365 | Device for nippling active electrode sections onto a combination electrode | Kurt Schudlich, Gunter Vielstich, Josef Muhlenbeck, Josef Otto, Dieter Zollner +1 more | 1985-05-21 |
| 4484897 | Device for nippling up electrodes in an electric furance | Kurt Schudlich, Gunter Vielstich, Josef Muhlenbeck, Josef Otto, Dieter Zollner +1 more | 1984-11-27 |
| 4401296 | Electro-metal smelting furnace with taphole arranged at the bottom | Klaus V. Ploetz, Ludger Zangs, Ralf Schneider, Josef Otto, Manfred Walter +2 more | 1983-08-30 |