Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7094271 | Method for producing stainless steels, in particular high-grade steels containing chromium and chromium-nickel | Karl Reiner Götzinger, Stefan Lemke, Johann Reichel | 2006-08-22 |
| 5350434 | Process and apparatus for making molten steel | — | 1994-09-27 |
| 4448402 | Apparatus for directly making liquid pig-iron from coarse iron ore | Ralph Weber, Rolf Hauk, Michael J. Nagle, Jr., Bernhard Rinner | 1984-05-15 |
| 4409023 | Process for directly making liquid pig-iron from coarse iron ore | Ralph Weber, Rolf Hauk, Michael Nagl, Bernhard Rinner | 1983-10-11 |
| 4392637 | Metallurgical melting apparatus with a blow-nozzle or burner capable of swivelling in different directions | Ralph Weber, Michael Nagl, Bernhard Rinner | 1983-07-12 |
| 4317677 | Process for producing liquid crude iron and reduction gas | Ralph Weber, Emil Elsner, Walter Maschlanka, Gerhard Sanders | 1982-03-02 |