Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4615731 | Hydrometallurgical processing of precious metal-containing materials | John A. Thomas, Norman C. Nissen, Malcolm Charles Evert Bell | 1986-10-07 |
| 4394366 | Process for production of CoCl.sub.2 solution from cobaltic oxide-hydrate | Victor A. Ettel, Eric A. Devuyst | 1983-07-19 |