Issued Patents All Time
Showing 1–4 of 4 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, Mauri J. Peuralinna | 1987-02-10 |
| 4478394 | Apparatus for the separation of lead from a sulfidic concentrate | Rolf E. Malmstrom, Esko O. Nermes, Tapio K. Tuominen | 1984-10-23 |
| 4391632 | Process for the separation of lead from a sulfidic concentrate | Rolf E. Malmstrom, Esko O. Nermes, Tapio K. Tuominen | 1983-07-05 |
| 4259106 | Process for the roasting and chlorination of finely-divided iron ores and concentrates containing non-ferrous metals | Juho K. Makinen | 1981-03-31 |