Inventor
SPATH MARK J
US31 patents
⚠️ This page may combine multiple inventors who share the name “SPATH MARK J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DELPHI TECH INC
24 patentsUS7882814B2Feb 8, 2011
Inner arm stop for a switchable rocker arm
DELPHI TECH INC59 citations97
US6814040B2Nov 9, 2004
Deactivation roller hydraulic valve lifter
DELPHI TECH INC26 citations96
US6578535B2Jun 17, 2003
Valve-deactivating lifter
DELPHI TECH INC67 citations94
US7673601B2Mar 9, 2010
Valve lifter assembly for selectively deactivating a cylinder
DELPHI TECH INC21 citations92
US7263956B2Sep 4, 2007
Valve lifter assembly for selectively deactivating a cylinder
DELPHI TECH INC21 citations92
US7117833B2Oct 10, 2006
Readily-fillable hydraulic valve lifter assembly
DELPHI TECH INC19 citations92
US7104232B2Sep 12, 2006
Deactivation roller hydraulic valve lifter
DELPHI TECH INC12 citations92
US7007651B2Mar 7, 2006
Anti-rotation guide for a deactivation hydraulic valve lifter
DELPHI TECH INC16 citations92
US6866014B2Mar 15, 2005
Anti-rotation guide for a deactivation hydraulic valve lifter
DELPHI TECH INC27 citations92
US6802288B2Oct 12, 2004
Deactivation hydraulic valve lifter having a pressurized oil groove
DELPHI TECH INC16 citations92
US6668776B2Dec 30, 2003
Deactivation roller hydraulic valve lifter
DELPHI TECH INC26 citations92
US6497207B2Dec 24, 2002
Deactivation roller hydraulic valve lifter
DELPHI TECH INC56 citations90
US6976463B2Dec 20, 2005
Anti-rotation deactivation valve lifter
DELPHI TECH INC15 citations82
US6748914B2Jun 15, 2004
Refillable metering valve for hydraulic valve lifters
DELPHI TECH INC16 citations82
US7757648B2Jul 20, 2010
Switchable valve train member
DELPHI TECH INC3 citations74
US7395792B2Jul 8, 2008
Deactivation roller hydraulic valve lifter
DELPHI TECH INC6 citations74
US7308879B2Dec 18, 2007
Deactivation roller hydraulic valve lifter
DELPHI TECH INC6 citations74
US7296548B2Nov 20, 2007
Deactivation roller hydraulic valve lifter
DELPHI TECH INC6 citations74
US6920857B2Jul 26, 2005
Deactivation hydraulic valve lifter having a pressurized oil groove
DELPHI TECH INC11 citations74
US7455040B2Nov 25, 2008
Hydraulic circuit for switchable cam followers
DELPHI TECH INC7 citations73
US7610887B2Nov 3, 2009
Valve-deactivating hydraulic lifter having a contoured pin housing bottom surface
DELPHI TECH INC2 citations63
US7246585B2Jul 24, 2007
Valve-deactivating hydraulic lifter having a vented internal lost motion spring
DELPHI TECH INC2 citations62
US7243629B2Jul 17, 2007
Hydraulic valve lifter assembly
DELPHI TECH INC0 citations52
US7409941B2Aug 12, 2008
Valve-deactivating hydraulic lifter having a vented internal lost motion spring
DELPHI TECH INC1 citations51
GEN MOTORS CORP
5 patentsUS5431133AJul 11, 1995
Low mass two-step valve lifter
GEN MOTORS CORP77 citations94
US5090364AFeb 25, 1992
Two-step valve operating mechanism
GEN MOTORS CORP96 citations94
US5398648AMar 21, 1995
Compact valve lifters
GEN MOTORS CORP65 citations93
US5361733ANov 8, 1994
Compact valve lifters
GEN MOTORS CORP67 citations93
US5606939AMar 4, 1997
Valve actuation assembly
GEN MOTORS CORP18 citations84