Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7736487 | Process for recovery of copper from copper-bearing material using pressure leaching, direct electrowinning and solution extraction | John O. Marsden, John C. Wilmot, Wayne W. Hazen, David R. Baughman | 2010-06-15 |