Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4561884 | Apparatus for removal of impurity components from sulphidic and metallized molten copper mattes | Simo A. I. Makipirtti | 1985-12-31 |
| 4431614 | Process for the separation of gold and silver from complex sulfide ores and concentrates | Simo A. I. Makipirtti, Veikko Polvi, Kaarlo M. J. Saari | 1984-02-14 |
| 4266512 | Apparatus for the vaporization of elemental sulfur by means of carrier gas | Simo A. I. Makipirtti, Heimo J. Heino | 1981-05-12 |