Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4515696 | Treatment of solutions to facilitate the removal of ferric iron therefrom | Ian G. Matthew, Mervyn G. Kershaw | 1985-05-07 |
| 4437953 | Process for solution control in an electrolytic zinc plant circuit | Oliver Newman, David Palmer | 1984-03-20 |
| 4305914 | Process for precipitating iron as jarosite with a low non-ferrous metal content | Curzon J. Haigh | 1981-12-15 |
| 4192852 | Process for precipitating iron as jarosite with a low non-ferrous metal content | Curzon J. Haigh | 1980-03-11 |