Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6582492 | Method for producing melt iron | Jean-Luc Roth, Marc Solvi | 2003-06-24 |
| 6314123 | Method for continuous smelting of solid metal products | Wilhelm Burgmann, Jean-Luc Roth, Henri Radoux | 2001-11-06 |
| 5395095 | Combined machine for opening and plugging a taphole in a shaft furnace | Pietro Marino, Geraldo J. A. Costa, Luiz F. Evangelista | 1995-03-07 |
| 4893791 | Automatic lance changeover device | Hubert Stomp, Carlo Heintz, Andre Kremer, Daniel Fries, Serge Devillet | 1990-01-16 |
| 4533125 | Apparatus for guiding and changing immersion lances | Pierre Mailliet, Radomir Andonov, Hubert Stomp | 1985-08-06 |