Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6680034 | Method for recovering metal values from metal-containing materials using high temperature pressure leaching | John O. Marsden, Robert E. Brewer, Joanna M. Robertson, Wayne W. Hazen, Philip Thompson | 2004-01-20 |
| 6676909 | Method for recovery of metals from metal-containing materials using medium temperature pressure leaching | John O. Marsden, Robert E. Brewer, Joanna M. Robertson, Wayne W. Hazen, Philip Thompson +1 more | 2004-01-13 |