Assignee
HPD LLC
US8 patents
Top patents by PatentIndex Score
US7597144B2Oct 6, 2009
Process for recovering heavy oil utilizing one or more membranes
HPD LLC25 citations91
US8052763B2Nov 8, 2011
Method for removing dissolved solids from aqueous waste streams
HPD LLC24 citations87
US8047287B2Nov 1, 2011
Process for recovering heavy oil utilizing one or more membranes
HPD LLC13 citations83
US7909098B2Mar 22, 2011
Process for recovering heavy oil utilizing one or more membranes
HPD LLC8 citations83
US7905283B2Mar 15, 2011
Process for removing silica in heavy oil recovery
HPD LLC9 citations83
US7591311B2Sep 22, 2009
Process for recovering heavy oil
HPD LLC14 citations81
US7686079B2Mar 30, 2010
Method for removing silica from evaporator concentrate
HPD LLC17 citations75
US7578345B2Aug 25, 2009
Process for recovering heavy oil using multiple effect evaporation
HPD LLC7 citations68