Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4561884 | Apparatus for removal of impurity components from sulphidic and metallized molten copper mattes | Pekka T. Setala | 1985-12-31 |
| 4431614 | Process for the separation of gold and silver from complex sulfide ores and concentrates | Veikko Polvi, Kaarlo M. J. Saari, Pekka T. Setala | 1984-02-14 |
| 4413816 | Gas-blast pipe for feeding reaction agents into metallurgical melts | Mauri J. Peuralinna, 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 | Launo L. Lilja, Mauri J. Peuralinna, Valto J. Makitalo | 1981-12-29 |
| 4304596 | Process for a sulfidizing pretreatment of the slag of pyrometallurgical processes in order to facilitate its further treatment | Frans H. Tuovinen | 1981-12-08 |
| 4266512 | Apparatus for the vaporization of elemental sulfur by means of carrier gas | Pekka T. Setala, Heimo J. Heino | 1981-05-12 |
| 4242124 | Process for the selective removal of impurities present in sulfidic complex ores, mixed ores or concentrates | — | 1980-12-30 |
| 4236700 | Device for suspension smelting of finely-divided _oxide and/or sulfide ores and concentrates | Jussi J. Kayhko | 1980-12-02 |