Assignee
PIERBURG GMBH
DE131 patents
Top patents by PatentIndex Score
US5417059AMay 23, 1995
Burner system for detoxification or cleaning the exhaust gases of an internal combustion engine
PIERBURG GMBH109 citations92
US4766865AAug 30, 1988
Device for determining the position of a crankshaft in relation to the cylinder
PIERBURG GMBH40 citations92
US7207324B2Apr 24, 2007
Air-intake duct system for a combustion engine
PIERBURG GMBH16 citations91
US5472321ADec 5, 1995
Fuel pump having an impeller with axially balanced forces acting thereon
PIERBURG GMBH28 citations91
US5144102ASep 1, 1992
Fluid pressure switch adapted for low fluid pressure and throughputs
PIERBURG GMBH28 citations91
US7077114B2Jul 18, 2006
Exhaust gas recirculation system for a combustion engine
PIERBURG GMBH31 citations90
US5639228AJun 17, 1997
Electrically driven air pump having friction-fit, air-tight seal joints
PIERBURG GMBH31 citations90
US5503185AApr 2, 1996
Electromagnetic reversing valve
PIERBURG GMBH29 citations90
US5105663AApr 21, 1992
Apparatus and method for measuring low fuel level in a fuel tank
PIERBURG GMBH22 citations90
US7074019B2Jul 11, 2006
Rotor protector for wet-type rotor pump
PIERBURG GMBH28 citations89
US5546788AAug 20, 1996
Method and apparatus for measuring the concentration of solid particles (soot) in the exhaust gases of internal combustion engines
PIERBURG GMBH51 citations89
US5226392AJul 13, 1993
Fuel pressure control valve for internal combustion engines
PIERBURG GMBH27 citations88
US5182942AFeb 2, 1993
Process and apparatus for utilization of fuels with alcohol additives for an internal combustion engine
PIERBURG GMBH39 citations85
US4818705AApr 4, 1989
Method and apparatus for analyzing the composition of the exhaust gas of any internal combustion engine
PIERBURG GMBH44 citations84
US10253682B2Apr 9, 2019
Electromagnetic valve for an internal combustion engine
PIERBURG GMBH8 citations83
US10041396B2Aug 7, 2018
Overrun air recirculation valve for a compressor of an internal combustion engine
PIERBURG GMBH9 citations83
US8047502B2Nov 1, 2011
Combined check and control valve
PIERBURG GMBH7 citations83
US7343743B2Mar 18, 2008
Exhaust-gas return system for an internal-combustion machine and method of returning exhaust gas
PIERBURG GMBH13 citations82
US7011082B2Mar 14, 2006
Exhaust gas feeding device for an internal combustion machine
PIERBURG GMBH14 citations81
US6784584B2Aug 31, 2004
Electric motor
PIERBURG GMBH14 citations81
US6692401B2Feb 17, 2004
Two-stage gear mechanism
PIERBURG GMBH15 citations81
US6939115B2Sep 6, 2005
Wet-type rotor pump
PIERBURG GMBH16 citations80
US10041401B2Aug 7, 2018
Overrun air recirculation valve for a compressor of an internal combustion engine
PIERBURG GMBH11 citations79
US7849684B2Dec 14, 2010
Exhaust gas throttle means
PIERBURG GMBH10 citations79
US7213587B2May 8, 2007
Adjustable two-way valve device for a combustion engine
PIERBURG GMBH20 citations79
US6840502B2Jan 11, 2005
Flap valve for fuel aggregates
PIERBURG GMBH13 citations79
US6571623B1Jun 3, 2003
Measuring instrument with rectangular flow channel and sensors for measuring the mass of a flowing medium
PIERBURG GMBH16 citations79
US7546828B2Jun 16, 2009
Throttle body assembly for an internal combustion engine
PIERBURG GMBH9 citations78
US7757873B2Jul 20, 2010
Bypass valve for internal combustion engines
PIERBURG GMBH13 citations76
US6581569B2Jun 24, 2003
Valve control unit for an internal combustion engine
PIERBURG GMBH16 citations74
US4834612AMay 30, 1989
In a pump wheel of a side-channel fuel pump
PIERBURG GMBH19 citations73
US4865522ASep 12, 1989
Fuel pump for an internal combustion engine having two pump units
PIERBURG GMBH18 citations72
US9976475B2May 22, 2018
Turbocharger having a waste-gate valve
PIERBURG GMBH5 citations71
US6659424B2Dec 9, 2003
Valve arrangement for pressure regulation of fuel supply in an internal combustion engine
PIERBURG GMBH8 citations71
US5388970AFeb 14, 1995
Electrically driven air pump
PIERBURG GMBH17 citations71
US4940397AJul 10, 1990
Fuel pump having a pressure chamber vented via a ball valve to the fuel tank
PIERBURG GMBH15 citations71
US4917069AApr 17, 1990
Fuel pump mounted on an engine with reduced heat transmission therefrom
PIERBURG GMBH13 citations71
US10731654B2Aug 4, 2020
Coolant pump for an internal combustion engine
PIERBURG GMBH2 citations70
US10508650B2Dec 17, 2019
Coolant pump for an internal combustion engine
PIERBURG GMBH4 citations70
US5315867AMay 31, 1994
Apparatus for measuring the fraction of liquid fuel in a fuel tank
PIERBURG GMBH15 citations70
US5245870ASep 21, 1993
Apparatus for measuring the fraction of liquid fuel in a fuel tank
PIERBURG GMBH15 citations70
US4986123AJan 22, 1991
Holder for thin electrical resistance sensors of an air flow measuring device
PIERBURG GMBH13 citations70
US7428897B2Sep 30, 2008
Controllable two way valve device
PIERBURG GMBH7 citations69
US10393273B2Aug 27, 2019
Adjustment element for an overrun air recirculation valve
PIERBURG GMBH2 citations68
US10385764B2Aug 20, 2019
Turbocharger with a waste gate valve
PIERBURG GMBH2 citations68
US9692278B2Jun 27, 2017
DC motor for driving assemblies of a motor vehicle
PIERBURG GMBH5 citations68
US9638141B2May 2, 2017
Exhaust gas valve device for an internal combustion engine
PIERBURG GMBH5 citations68
US5676345AOct 14, 1997
Electromagnetic valve
PIERBURG GMBH15 citations68
US9388907B2Jul 12, 2016
Flap hinges system for a flap shaft in a motor vehicle
PIERBURG GMBH6 citations67
US5524593AJun 11, 1996
Electropneumatic control valve
PIERBURG GMBH15 citations67
Showing the top 50 of 131 patents by PatentIndex Score.