Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4474735 | Process for the recovery of valuable metals from spent crude-oil sulfur-extraction catalysts | Jussi K. Rastas, Kauko Karpale | 1984-10-02 |
| 4208380 | Process for the recovery of cobalt from its impure, aqueous, in particular nickel-bearing, solutions and catalyst therefor | Matti Hämäläinen, Jussi K. Rastas, Tom O. Niemi | 1980-06-17 |