Issued Patents All Time
Showing 51–53 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4526650 | Method for regenerating pickling acids | Seppo I. Blomquist, Markku T. Saarela, Hannu Pouru, Kaj Lindroos, Timo T. Koivunen +1 more | 1985-07-02 |
| 4452762 | Hydrometallurgical process for the recovery of valuable metals from metallic alloys | Sigmund Fugleberg, Stig-Erik Hultholm, Asko Parviainen, Jussi K. Rastas | 1984-06-05 |
| 4220627 | Process for the treatment of raw materials containing arsenic and metal | Sigmund Fugleberg, Stig-Erik Hultholm, Jussi K. Rastas | 1980-09-02 |