Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7878156 | Method and plant for the conveyance of fine-grained solids | Martin Hirsch, Michael Ströder | 2011-02-01 |
| 6074456 | Process for hot briqueting granular sponge iron | Helmut Hausmann, Martin Hirsch, Siegfried Schimo, Michael Ströder, Peter Weber | 2000-06-13 |