Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4937057 | Method for removing sulphur in elemental form from gases containing sulphur dioxide or sulphur dioxide and hydrogen sulphide | Timo T. Talonen | 1990-06-26 |
| 4219354 | Hydrometallurgical process for the treatment of oxides and ferrites which contain iron and other metals | Jussi K. Rastas, Sigmund Fugleberg, Seppo Heimala, Sitg-Erik Hultholm | 1980-08-26 |