Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7615199 | Method for the recovery of valuable metals and arsenic from a solution | Jaakko Poijärvi, Raimo Nupponen, Jaana ROMPPANEN | 2009-11-10 |
| 5332414 | Method for producing high-grade nickel matte and metallized sulfide matte | — | 1994-07-26 |
| 4388111 | Process for the recovery of lead from a lead-bearing sulfide concentrate | Timo T. Talonen | 1983-06-14 |