Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6699302 | Treatment of metal sulphide concentrates by roasting and electrically stabilized open-arc furnace smelt reduction | Nicholas Barcza, Gary Kaiura, Gary J. O'Connell, Anthony L. Hannaford | 2004-03-02 |