Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5116588 | Process for reduction of sulfur emission during sintering processes | Harald Derler, Heinz Schollnhammer | 1992-05-26 |
| 4955587 | Arrangement for recovering molten pig iron or steel pre-products from lumpy iron-oxide containing charging substances | Markus Hubig | 1990-09-11 |
| 4895593 | Process of recovering molten pig iron or steel pre-products from lumpy iron-oxide and scrap using a fluidized bed | Markus Hubig | 1990-01-23 |
| 4766098 | Method of protecting a coal gasifier part from attack by liquid slags | Hans-Jurgen Gulas, Josef Horak, Gero Papst | 1988-08-23 |
| 4740240 | Smelting process for recovering metals from fine-grained non-ferrous metal sulfide ores or concentrates | Werner Kepplinger, Erich Ottenschlager | 1988-04-26 |
| 4566902 | Process for removing sulfur during melting of pig iron | — | 1986-01-28 |
| 4407864 | Process for treating iron sponge | Kurt Stift, Gunther Saiger | 1983-10-04 |
| 4380469 | Process and apparatus for continuously reducing and melting metal oxides and/or pre-reduced metallic materials | — | 1983-04-19 |
| 4376139 | Process for treating metallic starting materials for smelting plants, particularly iron sponge particles | Gunther Saiger, Kurt Stift | 1983-03-08 |
| 4254167 | Process of treating sponge iron for protection against reoxidation and apparatus for carrying out the process | Kurt Stift, Gunther Saiger | 1981-03-03 |