Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861369 | Process for gaining electric energy in addition to producing molten pig iron and an arrangement for carrying out the process | Ludwig von Bogdandy, Werner Kepplinger, Gero Papst, Rolf Hauk | 1989-08-29 |
| 4407864 | Process for treating iron sponge | Horst Sulzbacher, Gunther Saiger | 1983-10-04 |
| 4396421 | Method of, and arrangement for, producing molten pig iron or steel pre-material | Walter Lugscheider | 1983-08-02 |
| 4384886 | Process for zinc removal from oxide-containing iron sources | — | 1983-05-24 |
| 4376139 | Process for treating metallic starting materials for smelting plants, particularly iron sponge particles | Horst Sulzbacher, Gunther Saiger | 1983-03-08 |
| 4254167 | Process of treating sponge iron for protection against reoxidation and apparatus for carrying out the process | Horst Sulzbacher, Gunther Saiger | 1981-03-03 |