Inventor
SEYFFERT KENNETH W
US52 patents
⚠️ This page may combine multiple inventors who share the name “SEYFFERT KENNETH W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
VARCO INT
28 patentsUS6722504B2Apr 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
US7000777B2Feb 21, 2006
Vibratory separator screens
VARCO INT79 citations95
US7571817B2Aug 11, 2009
Automatic separator or shaker with electromagnetic vibrator apparatus
VARCO INT59 citations94
US6443310B1Sep 3, 2002
Seal screen structure
VARCO INT61 citations94
US6953097B2Oct 11, 2005
Drilling systems
VARCO INT38 citations93
US6659286B2Dec 9, 2003
Drawbar and screen system
VARCO INT20 citations93
US6988567B2Jan 24, 2006
Drilled cuttings movement systems and methods
VARCO INT35 citations92
US6935511B2Aug 30, 2005
Centrally supported screen assembly
VARCO INT25 citations92
US6450345B1Sep 17, 2002
Glue pattern screens and methods of production
VARCO INT35 citations92
US7306057B2Dec 11, 2007
Thermal drill cuttings treatment with weir system
VARCO INT69 citations91
US6936092B2Aug 30, 2005
Positive pressure drilled cuttings movement systems and methods
VARCO INT22 citations91
US6868972B2Mar 22, 2005
Fluid flow diffusers and vibratory separators
VARCO INT56 citations91
US6769550B2Aug 3, 2004
Screen assemblies for shale shakers
VARCO INT47 citations91
US6607080B2Aug 19, 2003
Screen assembly for vibratory separators
VARCO INT40 citations91
US7278540B2Oct 9, 2007
Adjustable basket vibratory separator
VARCO INT34 citations90
US7175027B2Feb 13, 2007
Shaker screen and clamping system
VARCO INT46 citations90
US6955262B2Oct 18, 2005
Removable seal apparatus for vibratory separator
VARCO INT17 citations84
US6910587B2Jun 28, 2005
Gumbo separator methods and apparatuses
VARCO INT14 citations84
US6530483B2Mar 11, 2003
Unibody structure for screen assembly
VARCO INT13 citations84
US6736270B2May 18, 2004
Glued screens for shale shakers
VARCO INT16 citations83
US6669985B2Dec 30, 2003
Methods for making glued shale shaker screens
VARCO INT13 citations83
US7331469B2Feb 19, 2008
Vibratory separator with automatically adjustable beach
VARCO INT17 citations79
US7040488B2May 9, 2006
Screens and seals for vibratory separators
VARCO INT10 citations74
US7000776B2Feb 21, 2006
Screen assembly for vibratory separators
VARCO INT9 citations71
US6932883B2Aug 23, 2005
Screens for vibratory separators
VARCO INT7 citations70
US6892888B2May 17, 2005
Screen with unibody structure
VARCO INT4 citations63
TUBOSCOPE I P INC
15 patentsUS6629610B1Oct 7, 2003
Screen with ramps for vibratory separator system
TUBOSCOPE I P INC53 citations96
US6325216B1Dec 4, 2001
Screen apparatus for vibratory separator
TUBOSCOPE I P INC89 citations96
US6283302B1Sep 4, 2001
Unibody screen structure
TUBOSCOPE I P INC60 citations96
US6179128B1Jan 30, 2001
Tension clamp and screen system
TUBOSCOPE I P INC50 citations96
US6032806AMar 7, 2000
Screen apparatus for vibratory separator
TUBOSCOPE I P INC50 citations96
US5971159AOct 26, 1999
Screen assembly for a vibratory separator
TUBOSCOPE I P INC59 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
US6371302B1Apr 16, 2002
Vibratory separator screens
TUBOSCOPE I P INC49 citations92
US6302276B1Oct 16, 2001
Screen support strip for use in vibratory screening apparatus
TUBOSCOPE I P INC20 citations92
US6220449B1Apr 24, 2001
Flat top cloth support screen
TUBOSCOPE I P INC32 citations92
US6152307ANov 28, 2000
Vibratory separator screens
TUBOSCOPE I P INC30 citations92
US6605029B1Aug 12, 2003
Centrifuge with open conveyor and methods of use
TUBOSCOPE I P INC43 citations91
US6581781B1Jun 24, 2003
Vibrator separator screens
TUBOSCOPE I P INC17 citations84
ENVIRONMENTAL PROCEDURES INC
2 patentsENV PROCEDURES INC
2 patentsADVANCED WIRECLOTH INC
1 patentTUBOSCOPE I/P INC
1 patentSANCOR PUMP CO
1 patentShowing the top 50 of 52 patents by PatentIndex Score.