Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7871560 | Metallurgical vessel with fixing system | Rolf Best, Wilhelm Köper, Lutz Rose | 2011-01-18 |
| 6277325 | Steelworks converter with cone cooling system | Gunter Schmitz | 2001-08-21 |