Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7615199 | Method for the recovery of valuable metals and arsenic from a solution | Raimo Nupponen, Tuula Makinen, Jaana ROMPPANEN | 2009-11-10 |
| 6761749 | Method for the production of blister copper in suspension reactor | Tarmo K. Mantymaki | 2004-07-13 |
| 6180078 | Method for thermally regenerating spent acid | Antti Jalonen, Johannes Holmi, Jari Ojala | 2001-01-30 |
| 4698139 | Hydrometallurgical method for treating valuable metal raw materials containing chlorides and fluorides | Sigmund Fugleberg | 1987-10-06 |