Inventor
LARGENT DAVID W
US24 patents
⚠️ This page may combine multiple inventors who share the name “LARGENT DAVID W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
VARCO INT
14 patentsUS6510947B1Jan 28, 2003
Screens for vibratory separators
VARCO INT96 citations98
US6722504B2Apr 20, 2004
Vibratory separators and screens
VARCO INT63 citations96
US6565698B1May 20, 2003
Method for making vibratory separator screens
VARCO INT63 citations96
US6454099B1Sep 24, 2002
Vibrator separator screens
VARCO INT52 citations96
US6443310B1Sep 3, 2002
Seal screen structure
VARCO INT61 citations94
US6848583B2Feb 1, 2005
Drilling fluid treatment
VARCO INT19 citations93
US6450345B1Sep 17, 2002
Glue pattern screens and methods of production
VARCO INT35 citations92
US6607080B2Aug 19, 2003
Screen assembly for vibratory separators
VARCO INT40 citations91
US6530483B2Mar 11, 2003
Unibody structure for screen assembly
VARCO INT13 citations84
US7520391B2Apr 21, 2009
Screen assembly for vibratory separator
VARCO INT9 citations83
US6736270B2May 18, 2004
Glued screens for shale shakers
VARCO INT16 citations83
US6669985B2Dec 30, 2003
Methods for making glued shale shaker screens
VARCO INT13 citations83
US6457588B1Oct 1, 2002
Treatment of fluid having lost circulation material
VARCO INT9 citations74
US6458283B1Oct 1, 2002
Lost circulation fluid treatment
VARCO INT6 citations63
TUBOSCOPE I P INC
9 patentsUS6629610B1Oct 7, 2003
Screen with ramps for vibratory separator system
TUBOSCOPE I P INC53 citations96
US6283302B1Sep 4, 2001
Unibody screen structure
TUBOSCOPE I P INC60 citations96
US6290068B1Sep 18, 2001
Shaker screens and methods of use
TUBOSCOPE I P INC71 citations95
US6269953B1Aug 7, 2001
Vibratory separator screen assemblies
TUBOSCOPE I P INC67 citations95
US6401934B1Jun 11, 2002
Ramped screen & vibratory separator system
TUBOSCOPE I P INC23 citations92
US6371306B2Apr 16, 2002
Lost circulation fluid treatment
TUBOSCOPE I P INC26 citations92
US6371302B1Apr 16, 2002
Vibratory separator screens
TUBOSCOPE I P INC49 citations92
US6152307ANov 28, 2000
Vibratory separator screens
TUBOSCOPE I P INC30 citations92
US6581781B1Jun 24, 2003
Vibrator separator screens
TUBOSCOPE I P INC17 citations84