Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4617671 | Arrangement for producing metals, such as molten pig iron, steel pre-material and ferroalloys | Walter Lugscheider, Wilhelm Schiffer, Alois Leutgob | 1986-10-14 |
| 4572281 | Method and arrangement for recovering the sensible heat of slag | Bernhard Enkner | 1986-02-25 |
| 4561883 | Method of producing metals or metal alloys and an arrangement therefor | Bernhard Enkner, Gerhard Hubweber | 1985-12-31 |
| 4533385 | Method for producing metals, such as molten pig iron, steel pre-material and ferroalloys | Walter Lugscheider, Wilhelm Schiffer, Alois Leutgob | 1985-08-06 |
| 4518417 | Method of, and arrangement for, reducing oxide-containing fine-particle ores | Walter Lugscheider, Alois Leutgob, Ernst Riegler | 1985-05-21 |
| 4197084 | Method of treating lumpy and grained materials with gaseous media | Ernst Wildling | 1980-04-08 |