Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6599374 | Method for producing a mixture of iron carbide and granular, directly reduced iron | Martin Hirsch | 2003-07-29 |
| 5603748 | Process and apparatus for a direct reduction of iron oxide containing materials to form Fe.sub.3 C | Martin Hirsch, Reza Husain, Wolfgang Bresser | 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 | Wolfgang Bresser, Martin Hirsch | 1996-10-01 |
| 5527379 | Process for a direct reduction of iron oxide containing materials to form Fe.sub.3 C | Martin Hirsch, Reza Husain, Wolfgang Bresser | 1996-06-18 |
| 5162107 | Method of reprocessing zinc- and lead-containing residues from metallurgical plants by means of a circulating fluidized bed system | Martin Hirsch, Albert Kaune, Karlheinz Broj, Uwe Harter, Walter Meichsner | 1992-11-10 |