Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4219354 | Hydrometallurgical process for the treatment of oxides and ferrites which contain iron and other metals | Jussi K. Rastas, Sigmund Fugleberg, Seppo Heimala, Jaakko T. I. Poijarvi | 1980-08-26 |