Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4642133 | Process for chlorinating volatilization of metals which are present in oxidic iron ores or concentrates | Juho K. Makinen, Olavi A. Aaltonen | 1987-02-10 |
| 4413816 | Gas-blast pipe for feeding reaction agents into metallurgical melts | Simo A. I. Makipirtti, Valto J. Makitalo, Launo L. Lilja, Helge Krogerus | 1983-11-08 |
| 4308058 | Process for the oxidation of molten low-iron metal matte to produce raw metal | Simo A. I. Makipirtti, Launo L. Lilja, Valto J. Makitalo | 1981-12-29 |