Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6251162 | Process for the production of liquid pig iron or liquid intermediate products of steel | Gunter Schrey, Franz Reufer, Jorg Diehl, Gerald Rosenfellner | 2001-06-26 |
| 6213762 | Shaft furnace | Wilhelm Stastny | 2001-04-10 |
| 4867787 | Mill arrangement with temporary storage vessel and a process of operating the same | Othmar Puhringer, Felix Wallner, Horst Wiesinger, Wilhelm Schiffer, Walter Rockenschaub | 1989-09-19 |
| 4804408 | A mill arrangement and a process of operating the same using off gases to refine pig iron | Othmar Puhringer, Felix Wallner, Horst Wiesinger, Wilhelm Schiffer, Walter Rockenschaub | 1989-02-14 |
| 4406696 | Process for recovering of metals from solutions of metal salts | Walter A. Hans, Hans D. Reiterer, Gerhard Lazar | 1983-09-27 |
| 4404027 | Method of recovering heavy metals | Gerhard Lazar | 1983-09-13 |