Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6482373 | Process for treating ore having recoverable metal values including arsenic containing components | Anthony L. Hannaford, K. Marc Le Vier, Rene R. Fernandez, Arno Fitting, Gurudas Samant +3 more | 2002-11-19 |
| 6248301 | Process for treating ore having recoverable metal values including arsenic containing components | Anthony L. Hannaford, K. Marc Le Vier, Rene R. Fernandez, Arno Fitting, Gurudas Samant +3 more | 2001-06-19 |
| 5123956 | Process for treating ore having recoverable gold values and including arsenic-, carbon- and sulfur-containing components by roasting in an oxygen-enriched gaseous atmosphere | Rene R. Fernandez, K. Marc Le Vier, Anthony L. Hannaford | 1992-06-23 |
| 4923510 | Treatment of refractory carbonaceous sulfide ores for gold recovery | Brian Ball, Ronald L. Atwood, Rong Wan, Sevket Acar | 1990-05-08 |
| 4731114 | Recovery of precious metals from refractory low-grade ores | Mahesh C. Jha, Marcy J. Kramer | 1988-03-15 |
| 4329223 | Flotation of molybdenite | Douglas R. Shaw | 1982-05-11 |
| 4219416 | Process for recovering molybdenum and tungsten from mining wastewater | Ernest R. Ramirez | 1980-08-26 |