Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6699302 | Treatment of metal sulphide concentrates by roasting and electrically stabilized open-arc furnace smelt reduction | Rodney T Jones, Nicholas Barcza, Gary Kaiura, Gary J. O'Connell | 2004-03-02 |
| 6482373 | Process for treating ore having recoverable metal values including arsenic containing components | K. Marc Le Vier, Rene R. Fernandez, Gopalan Ramadorai, Arno Fitting, Gurudas Samant +3 more | 2002-11-19 |
| 6248301 | Process for treating ore having recoverable metal values including arsenic containing components | K. Marc Le Vier, Rene R. Fernandez, Gopalan Ramadorai, 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, Gopalan Ramadorai | 1992-06-23 |
| 4756761 | Methods of making cementitious compositions from waste products | T. Peter Philip, Ernst Konick | 1988-07-12 |