Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6972107 | System for direct electrowinning of copper | John O. Marsden, Robert E. Brewer, Joanna M. Robertson, David R. Baughman, Wayne W. Hazen +1 more | 2005-12-06 |
| 6893482 | Method for improving metals recovery using high temperature pressure leaching | John O. Marsden, Robert E. Brewer, Joanna M. Robertson, David R. Baughman, Wayne W. Hazen +1 more | 2005-05-17 |
| 6890371 | Method for processing elemental sulfur-bearing materials using high temperature pressure leaching | John O. Marsden, Robert E. Brewer, Joanna M. Robertson, Wayne W. Hazen, David R. Baughman | 2005-05-10 |