Issued Patents All Time
Showing 1–3 of 3 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, Anthony L. Hannaford | 2004-03-02 |
| 5382278 | Pretreatment of chromium-bearing metal scrap to remove chromium | David G. Tisdale | 1995-01-17 |
| 5240496 | Pretreatment of chromium-bearing metal scrap to remove chromium | David G. Tisdale | 1993-08-31 |