Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4615731 | Hydrometallurgical processing of precious metal-containing materials | John A. Thomas, Malcolm Charles Evert Bell, Alexander Illis | 1986-10-07 |
| 4304644 | Autoclave oxidation leaching of sulfide materials containing copper, nickel and/or cobalt | Grigori S. Victorovich, Kohur N. Subramanian | 1981-12-08 |
| 4229270 | Process for the recovery of metal values from anode slimes | Kohur N. Subramanian, Malcolm Charles Evert Bell, John A. Thomas | 1980-10-21 |
| 4201648 | Nickel recovery from sulfur-deficient mattes | Kojur N. Subramanian, John A. Thomas | 1980-05-06 |