Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4383979 | Process for the recovery of zinc, copper and cadmium in the leaching of zinc calcine | Jussi K. Rastas, Raija-Leena Gisler, Simo S. Liukkonen | 1983-05-17 |
| 4362702 | Hydrometallurgical process for the treatment of a raw material which contains oxide and ferrite of zinc, copper and cadmium | Jussi K. Rastas, Jens Nyberg, Kauko Karpale | 1982-12-07 |