Assignee
PIERBURG GMBH
DE·131 granted patents·41 pending applications·1,086 citations·filing 1987–2022
Top patents by PatentIndex Score
172 records- 0193US10041396B2Overrun air recirculation valve for a compressor of an internal combustion enginePIERBURG GMBH·Filed 2015·Granted Aug 7, 2018·9 cites·8 claims
- 0292US10253682B2Electromagnetic valve for an internal combustion enginePIERBURG GMBH·Filed 2015·Granted Apr 9, 2019·8 cites·9 claims
- 0392US10041401B2Overrun air recirculation valve for a compressor of an internal combustion enginePIERBURG GMBH·Filed 2015·Granted Aug 7, 2018·11 cites·14 claims
- 0492US4766865ADevice for determining the position of a crankshaft in relation to the cylinderPIERBURG GMBH·Filed 1987·Granted Aug 30, 1988·40 cites·23 claims
- 0591US7213587B2Adjustable two-way valve device for a combustion enginePIERBURG GMBH·Filed 2005·Granted May 8, 2007·20 cites·7 claims
- 0691US7077114B2Exhaust gas recirculation system for a combustion enginePIERBURG GMBH·Filed 2005·Granted Jul 18, 2006·31 cites·14 claims
- 0790US5417059ABurner system for detoxification or cleaning the exhaust gases of an internal combustion enginePIERBURG GMBH·Filed 1993·Granted May 23, 1995·109 cites·16 claims
- 0886US10508650B2Coolant pump for an internal combustion enginePIERBURG GMBH·Filed 2016·Granted Dec 17, 2019·4 cites·11 claims
- 0985US9976475B2Turbocharger having a waste-gate valvePIERBURG GMBH·Filed 2015·Granted May 22, 2018·5 cites·13 claims
- 1084US7343743B2Exhaust-gas return system for an internal-combustion machine and method of returning exhaust gasPIERBURG GMBH·Filed 2005·Granted Mar 18, 2008·13 cites·10 claims
- 1181US5546788AMethod and apparatus for measuring the concentration of solid particles (soot) in the exhaust gases of internal combustion enginesPIERBURG GMBH·Filed 1995·Granted Aug 20, 1996·51 cites·9 claims
- 1280US9638141B2Exhaust gas valve device for an internal combustion enginePIERBURG GMBH·Filed 2014·Granted May 2, 2017·5 cites·13 claims
- 1380US5182942AProcess and apparatus for utilization of fuels with alcohol additives for an internal combustion enginePIERBURG GMBH·Filed 1991·Granted Feb 2, 1993·39 cites·25 claims
- 1479US9388907B2Flap hinges system for a flap shaft in a motor vehiclePIERBURG GMBH·Filed 2013·Granted Jul 12, 2016·6 cites·14 claims
- 1579US7074019B2Rotor protector for wet-type rotor pumpPIERBURG GMBH·Filed 2002·Granted Jul 11, 2006·28 cites·3 claims
- 1677US10731654B2Coolant pump for an internal combustion enginePIERBURG GMBH·Filed 2016·Granted Aug 4, 2020·2 cites·10 claims
- 1777US10393273B2Adjustment element for an overrun air recirculation valvePIERBURG GMBH·Filed 2015·Granted Aug 27, 2019·2 cites·13 claims
- 1877US10385764B2Turbocharger with a waste gate valvePIERBURG GMBH·Filed 2015·Granted Aug 20, 2019·2 cites·11 claims
- 1977US9692278B2DC motor for driving assemblies of a motor vehiclePIERBURG GMBH·Filed 2013·Granted Jun 27, 2017·5 cites·9 claims
- 2077US8047502B2Combined check and control valvePIERBURG GMBH·Filed 2008·Granted Nov 1, 2011·7 cites·19 claims
- 2177US7207324B2Air-intake duct system for a combustion enginePIERBURG GMBH·Filed 2004·Granted Apr 24, 2007·16 cites·20 claims
- 2275US9464602B2Exhaust flap device for an internal combustion enginePIERBURG GMBH·Filed 2013·Granted Oct 11, 2016·5 cites·12 claims
- 2375US6692401B2Two-stage gear mechanismPIERBURG GMBH·Filed 2001·Granted Feb 17, 2004·15 cites·18 claims
- 2474US7849684B2Exhaust gas throttle meansPIERBURG GMBH·Filed 2005·Granted Dec 14, 2010·10 cites·8 claims
- 2572US4818705AMethod and apparatus for analyzing the composition of the exhaust gas of any internal combustion enginePIERBURG GMBH·Filed 1987·Granted Apr 4, 1989·44 cites·13 claims
- 2671US11846225B2Valve device for an internal combustion enginePIERBURG GMBH·Filed 2020·Granted Dec 19, 2023·1 cites·15 claims
- 2770US9464540B2Transfer assembly for a mechanically controllable valve trainPIERBURG GMBH·Filed 2014·Granted Oct 11, 2016·2 cites·8 claims
- 2870US7757873B2Bypass valve for internal combustion enginesPIERBURG GMBH·Filed 2006·Granted Jul 20, 2010·13 cites·8 claims
- 2970US7546828B2Throttle body assembly for an internal combustion enginePIERBURG GMBH·Filed 2007·Granted Jun 16, 2009·9 cites·6 claims
- 3069US10578006B2Method for controlling a mechanically controllable coolant pump for an internal combustion enginePIERBURG GMBH·Filed 2016·Granted Mar 3, 2020·1 cites·11 claims
- 3169US7428897B2Controllable two way valve devicePIERBURG GMBH·Filed 2005·Granted Sep 30, 2008·7 cites·19 claims
- 3268US11795864B2Coolant valve for a motor vehiclePIERBURG GMBH·Filed 2019·Granted Oct 24, 2023·2 cites·11 claims
- 3368US5144102AFluid pressure switch adapted for low fluid pressure and throughputsPIERBURG GMBH·Filed 1991·Granted Sep 1, 1992·28 cites·11 claims
- 3467US7784450B2Exhaust-gas recirculation device for an internal combustion enginePIERBURG GMBH·Filed 2008·Granted Aug 31, 2010·6 cites·13 claims
- 3567US7011082B2Exhaust gas feeding device for an internal combustion machinePIERBURG GMBH·Filed 2004·Granted Mar 14, 2006·14 cites·11 claims
- 3666US8360755B2Wet-running pumpPIERBURG GMBH·Filed 2006·Granted Jan 29, 2013·4 cites·11 claims
- 3766US6939115B2Wet-type rotor pumpPIERBURG GMBH·Filed 2002·Granted Sep 6, 2005·16 cites·8 claims
- 3866US6840502B2Flap valve for fuel aggregatesPIERBURG GMBH·Filed 2003·Granted Jan 11, 2005·13 cites·9 claims
- 3965US9518514B2Flap device for an internal combustion enginePIERBURG GMBH·Filed 2013·Granted Dec 13, 2016·2 cites·17 claims
- 4065US8011175B2Exhaust-gas cooling device for an internal combustion enginePIERBURG GMBH·Filed 2008·Granted Sep 6, 2011·5 cites·6 claims
- 4165US5639228AElectrically driven air pump having friction-fit, air-tight seal jointsPIERBURG GMBH·Filed 1995·Granted Jun 17, 1997·31 cites·16 claims
- 4265US5226392AFuel pressure control valve for internal combustion enginesPIERBURG GMBH·Filed 1992·Granted Jul 13, 1993·27 cites·8 claims
- 4365US4865522AFuel pump for an internal combustion engine having two pump unitsPIERBURG GMBH·Filed 1988·Granted Sep 12, 1989·18 cites·11 claims
- 4464US5503185AElectromagnetic reversing valvePIERBURG GMBH·Filed 1994·Granted Apr 2, 1996·29 cites·12 claims
- 4564US5105663AApparatus and method for measuring low fuel level in a fuel tankPIERBURG GMBH·Filed 1989·Granted Apr 21, 1992·22 cites·12 claims
- 4663US6784584B2Electric motorPIERBURG GMBH·Filed 2002·Granted Aug 31, 2004·14 cites·7 claims
- 4762US5472321AFuel pump having an impeller with axially balanced forces acting thereonPIERBURG GMBH·Filed 1993·Granted Dec 5, 1995·28 cites·14 claims
- 4861US10294896B2Flap device for an internal combustion enginePIERBURG GMBH·Filed 2015·Granted May 21, 2019·1 cites·10 claims
- 4961US2025239634A1Device for recirculating anode gas in a fuel cell systemPIERBURG GMBH·Filed 2021·Application pending·0 cites
- 5060US10954866B2Flap device for an internal combustion enginePIERBURG GMBH·Filed 2017·Granted Mar 23, 2021·1 cites·13 claims
Showing the top 50 of 172 patent records by PatentIndex Score.
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