Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7641801 | Method for removing manganese from nickel laterite waste liquors | Mohamed Buarzaiga, Eric A. Devuyst, Joe Paventi | 2010-01-05 |
| 4397689 | Process for the extraction of precious metals from concentrates thereof | Richard K. Lea, D. Frederick Colton | 1983-08-09 |
| 4390366 | Process for the extraction of precious metals from solutions thereof | Richard K. Lea, D. Frederick Colton | 1983-06-28 |