Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5603748 | Process and apparatus for a direct reduction of iron oxide containing materials to form Fe.sub.3 C | Martin Hirsch, Reza Husain, Alpaydin Saatci | 1997-02-18 |
| 5560762 | Process for the heat treatment of fine-grained iron ore and for the conversion of the heat treated iron ore to metallic iron | Martin Hirsch, Alpaydin Saatci | 1996-10-01 |
| 5527379 | Process for a direct reduction of iron oxide containing materials to form Fe.sub.3 C | Martin Hirsch, Reza Husain, Alpaydin Saatci | 1996-06-18 |
| 5474592 | Method of reprocessing metallurgical residues, which contain zinc and lead | Martin Hirsch, Albert Kaune, Uwe Harter | 1995-12-12 |
| 5433767 | Direct reduction of iron oxide materials with solid carbonaceous reducing agents | Martin Hirsch, Bernd Kosters, Fritz Rose | 1995-07-18 |