Assignee
STACKPOLE LTD
CA30 patents
Top patents by PatentIndex Score
US5729822AMar 17, 1998
Gears
STACKPOLE LTD70 citations96
US5476632ADec 19, 1995
Powder metal alloy process
STACKPOLE LTD68 citations96
US5754937AMay 19, 1998
Hi-density forming process
STACKPOLE LTD44 citations95
US5540883AJul 30, 1996
Method of producing bearings
STACKPOLE LTD60 citations95
US5698149ADec 16, 1997
Phased split die
STACKPOLE LTD51 citations94
US5516483AMay 14, 1996
Hi-density sintered alloy
STACKPOLE LTD46 citations94
US4544431AOct 1, 1985
Roll fed labelling machine
STACKPOLE LTD84 citations92
US6440357B1Aug 27, 2002
Compacted-powder opposed twin-helical gears and method
STACKPOLE LTD26 citations91
US6193927B1Feb 27, 2001
High density forming process with ferro alloy and prealloy
STACKPOLE LTD31 citations91
US6143240ANov 7, 2000
High density forming process with powder blends
STACKPOLE LTD22 citations91
US5997805ADec 7, 1999
High carbon, high density forming
STACKPOLE LTD28 citations91
US6365094B1Apr 2, 2002
Lubricated die
STACKPOLE LTD27 citations90
US6318986B1Nov 20, 2001
Undercut split die
STACKPOLE LTD28 citations90
US6099772AAug 8, 2000
Undercut split die
STACKPOLE LTD25 citations90
US6019937AFeb 1, 2000
Press and sinter process for high density components
STACKPOLE LTD20 citations90
US5641922AJun 24, 1997
Hi-density sintered alloy and spheroidization method for pre-alloyed powders
STACKPOLE LTD18 citations90
US6110419AAug 29, 2000
Point contact densification
STACKPOLE LTD27 citations88
US4758300AJul 19, 1988
High speed labelling machine
STACKPOLE LTD35 citations86
US6907971B2Jun 21, 2005
One-way clutch
STACKPOLE LTD20 citations83
US5722815AMar 3, 1998
Three stage self regulating gerotor pump
STACKPOLE LTD49 citations81
US6165400ADec 26, 2000
Compacted-powder opposed twin-helical gears and method
STACKPOLE LTD33 citations80
US5656787AAug 12, 1997
Hi-density sintered alloy
STACKPOLE LTD16 citations80
US5096398AMar 17, 1992
Pulse tuned optimized positive displacement porting
STACKPOLE LTD21 citations76
US5881354AMar 9, 1999
Sintered hi-density process with forming
STACKPOLE LTD8 citations73
US5834640ANov 10, 1998
Powder metal alloy process
STACKPOLE LTD13 citations73
US5512236AApr 30, 1996
Sintered coining process
STACKPOLE LTD17 citations72
US6120728ASep 19, 2000
Method of making a component using a phased split die
STACKPOLE LTD15 citations70
US5135373AAug 4, 1992
Spur gear with epi-cycloidal and hypo-cycloidal tooth shapes
STACKPOLE LTD11 citations68
US6346213B1Feb 12, 2002
Press and sinter process for high density components
STACKPOLE LTD0 citations50
US7955063B2Jun 7, 2011
Vane pump
STACKPOLE LTD0 citations39