Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4367215 | Method of acid leaching of silicates | Jan Torgersen | 1983-01-04 |
| 4352574 | Mixer-settler apparatus | — | 1982-10-05 |
| 4297326 | Method of producing a pure aluminiumoxide from solutions containing dissolved ions of aluminium and iron | Ingleif Hundere | 1981-10-27 |
| 4297327 | Method of precipitation of pure aluminiumchloride from solutions which contain ions of aluminium and magnesium | Gunnar Hannestad, Ingleif Hundere, Jan Torgersen | 1981-10-27 |
| 4238467 | Method of producing yttrium oxide with particularly big particles | Martin Dugan | 1980-12-09 |