Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6508853 | Process for the production of metal melts | Stefan Dimitrov, Norbert Ramaseder, Yoyou Zhai, Johannes Steins, Ernst Fritz +1 more | 2003-01-21 |
| 6372011 | Method for producing an iron melt using iron-containing residual smelting plant materials | Johann Lehner, Alexander Fleischanderl, Stefan Dimitrov | 2002-04-16 |
| 6264883 | Plant for the production of metal melts | Stefan Dimitrov, Norbert Ramaseder, Yoyou Zhai, Johannes Steins, Ernst Fritz +1 more | 2001-07-24 |
| 6241798 | Iron smelting process and plant according to the multiple zone smelting process | Stefan Dimitrov, Norbert Ramaseder, Ernst Fritz, Heinz Muller | 2001-06-05 |
| 5454852 | Converter for the production of steel | Johann Grabner, Sieghart Kaspar | 1995-10-03 |
| 5238484 | Plant for the production of molten metals and method | Alfred Weber, Johannes Steins | 1993-08-24 |
| 5234200 | Method and arrangement for preventing crusts from agglomeration in a metallurgical vessel | Norbert Ramaseder, Johannes Steins | 1993-08-10 |
| 5190719 | Plant for the production of molten metals | Alfred Weber, Johann Auer | 1993-03-02 |
| 5167699 | Process and installation for producing molten steel of scrap | Alfred Weber | 1992-12-01 |
| 5151243 | Metallurgical vessel | Johann Auer, Norbert Ramaseder, Hellmuth Smejkal | 1992-09-29 |
| 5096165 | Metallurgical vessel with probe opening | Johann Auer, Norbert Ramaseder, Hellmuth Smejkal | 1992-03-17 |
| 4995907 | Method of deoxiding and alloying steel | — | 1991-02-26 |
| 4699361 | Shaft furnace arrangement for the direct reduction of iron ores | Klaus Wieser | 1987-10-13 |
| 4606799 | Method, and an arrangement, for producing synthesis gases | Ferdinand Jarema | 1986-08-19 |
| 4413812 | Apparatus for discharging hot flowable solids, particularly sponge iron, from a shaft furnace | Martin Nagl | 1983-11-08 |