| 8012318 |
Process for multiple stage direct electrowinning of copper |
John O. Marsden, Robert E. Brewer, Susan R Brewer, Joanna M. Robertson, David R. Baughman +2 more |
2011-09-06 |
$263,052,000 |
| 7736488 |
Process for recovery of copper from copper-bearing material using pressure leaching, direct electrowinning and solvent/solution extraction |
John O. Marsden, Robert E. Brewer, Susan R Brewer, Joanna M. Robertson, David R. Baughman +2 more |
2010-06-15 |
$45,550,000 |
| 7722756 |
Process for multiple stage direct electrowinning of copper |
John O. Marsden, Joanna M. Robertson, Robert E. Brewer, David R. Baughman, Wayne W. Hazen +1 more |
2010-05-25 |
$252,486,000 |
| 7666371 |
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, David R. Baughman |
2010-02-23 |
$327,694,000 |
| 7517384 |
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 |
2009-04-14 |
|
| 7485216 |
Process for recovery of copper from copper-bearing material using pressure leaching, direct electrowinning and solvent/solution extraction |
John O. Marsden, Joanna M. Robertson, David R. Baughman, Wayne W. Hazen, Christel M. A. Bemelmans +1 more |
2009-02-03 |
|
| 7473413 |
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, David R. Baughman |
2009-01-06 |
|
| 7462272 |
Process for multiple stage direct electrowinning of copper |
John O. Marsden, Joanna M. Robertson, David R. Baughman, Wayne W. Hazen, Christel M. A. Bemelmans +1 more |
2008-12-09 |
|
| 7341700 |
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, David R. Baughman +1 more |
2008-03-11 |
|
| 7125436 |
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 |
2006-10-24 |
$185,754,000 |
| D521588 |
Golf ball washer |
— |
2006-05-23 |
|
| 7041152 |
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 |
2006-05-09 |
$171,807,000 |
| 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 |
$110,651,000 |
| 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 |
$62,081,000 |
| 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 |
$59,780,000 |
| 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, David R. Baughman |
2004-01-20 |
$46,074,000 |
| 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, David R. Baughman +1 more |
2004-01-13 |
$35,730,000 |
| 6663689 |
Process for direct electrowinning of copper |
John O. Marsden, Robert E. Brewer, Joanna M. Robertson, David R. Baughman, Wayne W. Hazen +1 more |
2003-12-16 |
$41,652,000 |
| 6626979 |
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 |
2003-09-30 |
$32,231,000 |
| 6497745 |
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 |
2002-12-24 |
$24,007,000 |
| 6451088 |
Method for improving metals recovery using high temperature leaching |
John O. Marsden, Robert E. Brewer, Joanna M. Robertson, David R. Baughman, Wayne W. Hazen +1 more |
2002-09-17 |
$9,865,000 |
| 6451089 |
Process for direct electrowinning of copper |
John O. Marsden, Robert E. Brewer, Joanna M. Robertson, David R. Baughman, Wayne W. Hazen +1 more |
2002-09-17 |
$9,865,000 |
| 4192737 |
Froth flotation of insoluble slimes from sylvinite ores |
Jerry L. Huiatt, Don C. Seidel |
1980-03-11 |
|