Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6497745 | Method for processing elemental sulfur-bearing materials using high temperature pressure leaching | John O. Marsden, Robert E. Brewer, Wayne W. Hazen, Philip Thompson, David R. Baughman | 2002-12-24 |
| 6451088 | Method for improving metals recovery using high temperature leaching | John O. Marsden, Robert E. Brewer, David R. Baughman, Philip Thompson, Wayne W. Hazen +1 more | 2002-09-17 |
| 6451089 | Process for direct electrowinning of copper | John O. Marsden, Robert E. Brewer, David R. Baughman, Philip Thompson, Wayne W. Hazen +1 more | 2002-09-17 |