Inventor
MARSDEN JOHN O
US33 patents
⚠️ This page may combine multiple inventors who share the name “MARSDEN JOHN O”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PHELPS DODGE CORP
21 patentsUS6451088B1Sep 17, 2002
Method for improving metals recovery using high temperature leaching
PHELPS DODGE CORP34 citations96
US7517384B2Apr 14, 2009
Method for improving metals recovery using high temperature pressure leaching
PHELPS DODGE CORP11 citations92
US7452455B2Nov 18, 2008
System and method for producing metal powder by electrowinning
PHELPS DODGE CORP15 citations92
US7393438B2Jul 1, 2008
Apparatus for producing metal powder by electrowinning
PHELPS DODGE CORP16 citations92
US7378010B2May 27, 2008
System and method for producing copper powder by electrowinning in a flow-through electrowinning cell
PHELPS DODGE CORP17 citations92
US7341700B2Mar 11, 2008
Method for recovery of metals from metal-containing materials using medium temperature pressure leaching
PHELPS DODGE CORP23 citations92
US7125436B2Oct 24, 2006
Method for improving metals recovery using high temperature pressure leaching
PHELPS DODGE CORP13 citations92
US6972107B2Dec 6, 2005
System for direct electrowinning of copper
PHELPS DODGE CORP20 citations92
US6893482B2May 17, 2005
Method for improving metals recovery using high temperature pressure leaching
PHELPS DODGE CORP14 citations92
US6680034B2Jan 20, 2004
Method for recovering metal values from metal-containing materials using high temperature pressure leaching
PHELPS DODGE CORP22 citations92
US6663689B2Dec 16, 2003
Process for direct electrowinning of copper
PHELPS DODGE CORP17 citations92
US6626979B2Sep 30, 2003
Method for improving metals recovery using high temperature pressure leaching
PHELPS DODGE CORP23 citations92
US6451089B1Sep 17, 2002
Process for direct electrowinning of copper
PHELPS DODGE CORP24 citations92
US7494580B2Feb 24, 2009
System and method for producing copper powder by electrowinning using the ferrous/ferric anode reaction
PHELPS DODGE CORP14 citations83
US7485216B2Feb 3, 2009
Process for recovery of copper from copper-bearing material using pressure leaching, direct electrowinning and solvent/solution extraction
PHELPS DODGE CORP14 citations83
US7476308B2Jan 13, 2009
Process for multiple stage direct electrowinning of copper
PHELPS DODGE CORP11 citations83
US7462272B2Dec 9, 2008
Process for multiple stage direct electrowinning of copper
PHELPS DODGE CORP9 citations83
US7473413B2Jan 6, 2009
Method for recovering metal values from metal-containing materials using high temperature pressure leaching
PHELPS DODGE CORP6 citations74
US7041152B2May 9, 2006
Method for processing elemental sulfur-bearing materials using high temperature pressure leaching
PHELPS DODGE CORP6 citations74
US6890371B2May 10, 2005
Method for processing elemental sulfur-bearing materials using high temperature pressure leaching
PHELPS DODGE CORP5 citations74
US6497745B2Dec 24, 2002
Method for processing elemental sulfur-bearing materials using high temperature pressure leaching
PHELPS DODGE CORP12 citations74
FREEPORT MCMORAN CORP
10 patentsUS7736475B2Jun 15, 2010
System and method for producing copper powder by electrowinning using the ferrous/ferric anode reaction
FREEPORT MCMORAN CORP16 citations92
US7591934B2Sep 22, 2009
Apparatus for producing metal powder by electrowinning
FREEPORT MCMORAN CORP18 citations92
US8012318B2Sep 6, 2011
Process for multiple stage direct electrowinning of copper
FREEPORT MCMORAN CORP8 citations83
US7736486B2Jun 15, 2010
System and method for producing copper power by electrowinning in a flow-through electrowinning cell
FREEPORT MCMORAN CORP9 citations83
US7736476B2Jun 15, 2010
System and method for producing metal powder by electrowinning
FREEPORT MCMORAN CORP10 citations83
US7736487B2Jun 15, 2010
Process for recovery of copper from copper-bearing material using pressure leaching, direct electrowinning and solution extraction
FREEPORT MCMORAN CORP10 citations80
US7666371B2Feb 23, 2010
Method for recovering metal values from metal-containing materials using high temperature pressure leaching
FREEPORT MCMORAN CORP6 citations74
US7722756B2May 25, 2010
Process for multiple stage direct electrowinning of copper
FREEPORT MCMORAN CORP5 citations73
US7736488B2Jun 15, 2010
Process for recovery of copper from copper-bearing material using pressure leaching, direct electrowinning and solvent/solution extraction
FREEPORT MCMORAN CORP6 citations72
US8016983B2Sep 13, 2011
System and method for producing copper powder by electrowinning in a flow-through electrowinning cell
FREEPORT MCMORAN CORP4 citations62