Issued Patents All Time
Showing 1–25 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8273237 | Method and apparatus for electrowinning copper using an atmospheric leach with ferrous/ferric anode reaction electrowinning | James D. Gillaspie, John C. Wilmot | 2012-09-25 |
| 8016983 | System and method for producing copper powder by electrowinning in a flow-through electrowinning cell | Antonioni C. Stevens, Stanley Gilbert, Scot P. Sandoval, Timothy G. Robinson | 2011-09-13 |
| 8012318 | Process for multiple stage direct electrowinning of copper | Robert E. Brewer, Susan R Brewer, Joanna M. Robertson, David R. Baughman, Philip Thompson +2 more | 2011-09-06 |
| 7736487 | Process for recovery of copper from copper-bearing material using pressure leaching, direct electrowinning and solution extraction | John C. Wilmot, Christy Green, Wayne W. Hazen, David R. Baughman | 2010-06-15 |
| 7736475 | System and method for producing copper powder by electrowinning using the ferrous/ferric anode reaction | Scot P. Sandoval, Antonioni C. Stevens, Timothy G. Robinson, Stanley Gilbert | 2010-06-15 |
| 7736476 | System and method for producing metal powder by electrowinning | Stanley Gilbert, Scot P. Sandoval, Antonioni C. Stevens, Timothy G. Robinson | 2010-06-15 |
| 7736486 | System and method for producing copper power by electrowinning in a flow-through electrowinning cell | Antonioni C. Stevens, Stanley Gilbert, Scot P. Sandoval, Timothy G. Robinson | 2010-06-15 |
| 7736488 | Process for recovery of copper from copper-bearing material using pressure leaching, direct electrowinning and solvent/solution extraction | Robert E. Brewer, Susan R Brewer, Joanna M. Robertson, David R. Baughman, Philip Thompson +2 more | 2010-06-15 |
| 7722756 | Process for multiple stage direct electrowinning of copper | Joanna M. Robertson, Robert E. Brewer, David R. Baughman, Philip Thompson, Wayne W. Hazen +1 more | 2010-05-25 |
| 7666371 | Method for recovering metal values from metal-containing materials using high temperature pressure leaching | Robert E. Brewer, Joanna M. Robertson, Wayne W. Hazen, Philip Thompson, David R. Baughman | 2010-02-23 |
| 7591934 | Apparatus for producing metal powder by electrowinning | Scot P. Sandoval, Antonioni C. Stevens, Timothy G. Robinson, Stanley Gilbert | 2009-09-22 |
| 7517384 | Method for improving metals recovery using high temperature pressure leaching | Robert E. Brewer, Joanna M. Robertson, David R. Baughman, Philip Thompson, Wayne W. Hazen +1 more | 2009-04-14 |
| 7494580 | System and method for producing copper powder by electrowinning using the ferrous/ferric anode reaction | Scot P. Sandoval, Antonioni C. Stevens, Timothy G. Robinson, Stanley Gilbert | 2009-02-24 |
| 7485216 | Process for recovery of copper from copper-bearing material using pressure leaching, direct electrowinning and solvent/solution extraction | Joanna M. Robertson, David R. Baughman, Philip Thompson, Wayne W. Hazen, Christel M. A. Bemelmans +1 more | 2009-02-03 |
| 7476308 | Process for multiple stage direct electrowinning of copper | Robert E. Brewer, Joanna M. Robertson, David R. Baughman, Phillip Thompson, Wayne W. Hazen +1 more | 2009-01-13 |
| 7473413 | Method for recovering metal values from metal-containing materials using high temperature pressure leaching | Robert E. Brewer, Joanna M. Robertson, Wayne W. Hazen, Philip Thompson, David R. Baughman | 2009-01-06 |
| 7462272 | Process for multiple stage direct electrowinning of copper | Joanna M. Robertson, David R. Baughman, Philip Thompson, Wayne W. Hazen, Christel M. A. Bemelmans +1 more | 2008-12-09 |
| 7452455 | System and method for producing metal powder by electrowinning | Scot P. Sandoval, Antonioni C. Stevens, Timothy G. Robinson, Stanley Gilbert | 2008-11-18 |
| 7393438 | Apparatus for producing metal powder by electrowinning | Scot P. Sandoval, Antonioni C. Stevens, Timothy G. Robinson, Stanley Gilbert | 2008-07-01 |
| 7378010 | System and method for producing copper powder by electrowinning in a flow-through electrowinning cell | Antonioni C. Stevens, Stanley Gilbert, Scot P. Sandoval, Timothy G. Robinson | 2008-05-27 |
| 7341700 | Method for recovery of metals from metal-containing materials using medium temperature pressure leaching | Robert E. Brewer, Joanna M. Robertson, Wayne W. Hazen, Philip Thompson, David R. Baughman +1 more | 2008-03-11 |
| 7125436 | Method for improving metals recovery using high temperature pressure leaching | Robert E. Brewer, Joanna M. Robertson, David R. Baughman, Philip Thompson, Wayne W. Hazen +1 more | 2006-10-24 |
| 7041152 | Method for processing elemental sulfur-bearing materials using high temperature pressure leaching | Robert E. Brewer, Joanna M. Robertson, Wayne W. Hazen, Philip Thompson, David R. Baughman | 2006-05-09 |
| 6972107 | System for direct electrowinning of copper | Robert E. Brewer, Joanna M. Robertson, David R. Baughman, Philip Thompson, Wayne W. Hazen +1 more | 2005-12-06 |
| 6893482 | Method for improving metals recovery using high temperature pressure leaching | Robert E. Brewer, Joanna M. Robertson, David R. Baughman, Philip Thompson, Wayne W. Hazen +1 more | 2005-05-17 |