Assignee
PIERBURG AG
DE·32 granted patents·818 citations·filing 1995–2001
Top patents by PatentIndex Score
32 records- 0192US6443135B1Assembly of a valve unit, a combustion air intake and an exhaust gas recirculation unit for an internal combustion enginePIERBURG AG·Filed 2000·Granted Sep 3, 2002·50 cites·21 claims
- 0291US5785013AElectrically driven coolant pump for an internal combustion enginePIERBURG AG·Filed 1996·Granted Jul 28, 1998·101 cites·11 claims
- 0390US6293769B1Canned pump with dry rotor compartmentPIERBURG AG·Filed 2000·Granted Sep 25, 2001·67 cites·7 claims
- 0487US5975062AApparatus and method for periodically cleaning a charcoal canister and for periodically checking leak-tightness of a fuel system of an internal combustion enginePIERBURG AG·Filed 1998·Granted Nov 2, 1999·55 cites·12 claims
- 0585US6321781B1Apparatus for monitoring the valve stroke of an electromagnetically actuated valvePIERBURG AG·Filed 2000·Granted Nov 27, 2001·82 cites·4 claims
- 0685US6036456AElectrical air pump adapted for being periodically turned on and off and reversed in pumping directionPIERBURG AG·Filed 1998·Granted Mar 14, 2000·67 cites·20 claims
- 0777US6296458B1Electric fuel pumpPIERBURG AG·Filed 2000·Granted Oct 2, 2001·21 cites·12 claims
- 0873US5996551ASpring assembly in an engine air throttle control providing rotational blocking when relaxedPIERBURG AG·Filed 1998·Granted Dec 7, 1999·30 cites·8 claims
- 0973US5701874ABalanced valve control member for exhaust gas recyclingPIERBURG AG·Filed 1996·Granted Dec 30, 1997·34 cites·5 claims
- 1070US5711652AElectrically driven air pump having a drive motor balanced in situPIERBURG AG·Filed 1995·Granted Jan 27, 1998·30 cites·13 claims
- 1167US6494090B1Air-mass sensorPIERBURG AG·Filed 1999·Granted Dec 17, 2002·37 cites·29 claims
- 1264US6265866B1Measuring device for determining the position of a control element with temperature related measurement errors correctionPIERBURG AG·Filed 2000·Granted Jul 24, 2001·11 cites·9 claims
- 1360US6390060B1Throttle valve for an internal combustion enginePIERBURG AG·Filed 2000·Granted May 21, 2002·11 cites·9 claims
- 1458US5797727AImpeller mounting for electrically driven air pump to reduce vibrationPIERBURG AG·Filed 1997·Granted Aug 25, 1998·27 cites·9 claims
- 1554US6282944B1Apparatus and process for the analysis of exhaust gas componentsPIERBURG AG·Filed 1999·Granted Sep 4, 2001·23 cites·3 claims
- 1652US5765435AApparatus for indicating fuel level in a fuel tankPIERBURG AG·Filed 1995·Granted Jun 16, 1998·24 cites·7 claims
- 1752US5765535AFuel supply system for internal combustion enginesPIERBURG AG·Filed 1996·Granted Jun 16, 1998·15 cites·9 claims
- 1851US6552466B2Wet-running direct-current motor having fluted brush contact facesPIERBURG AG·Filed 2000·Granted Apr 22, 2003·11 cites·3 claims
- 1951US6039536AConnection between a rotor hub and a shaft of an electric motor of an electrically driven air pumpPIERBURG AG·Filed 1998·Granted Mar 21, 2000·19 cites·3 claims
- 2049US6367440B1Air-intake tube system for internal combustion enginesPIERBURG AG·Filed 2000·Granted Apr 9, 2002·6 cites·8 claims
- 2149US6203286B1Electric fuel pump which is self-filling at low fuel levels in a fuel tankPIERBURG AG·Filed 2000·Granted Mar 20, 2001·7 cites·11 claims
- 2246US6213446B1Exhaust gas recirculation valve having means to free a stuck valve memberPIERBURG AG·Filed 1999·Granted Apr 10, 2001·12 cites·8 claims
- 2345US5852227AApparatus for measuring the composition of exhaust gases of internal combustion enginesPIERBURG AG·Filed 1997·Granted Dec 22, 1998·15 cites·7 claims
- 2439US5706785AFuel supply system for internal combustion enginesPIERBURG AG·Filed 1996·Granted Jan 13, 1998·10 cites·10 claims
- 2536US5826554APressure relief means for a thin wall, air intake pipe for an internal combustion enginePIERBURG AG·Filed 1997·Granted Oct 27, 1998·8 cites·9 claims
- 2635US5969617AFlame ionization detectorPIERBURG AG·Filed 1998·Granted Oct 19, 1999·8 cites·5 claims
- 2735US5779463ARotary piston pump having a slide valve driven by a rotorPIERBURG AG·Filed 1995·Granted Jul 14, 1998·9 cites·6 claims
- 2830US6374610B2Secondary air fan for an internal combustion enginePIERBURG AG·Filed 2001·Granted Apr 23, 2002·2 cites·5 claims
- 2930US6272923B1Determining fill level of engine cooling systemPIERBURG AG·Filed 1999·Granted Aug 14, 2001·4 cites·7 claims
- 3030US6202602B1Cooler for use in a vehicle combustion enginePIERBURG AG·Filed 1997·Granted Mar 20, 2001·6 cites·1 claims
- 3129US6386030B1Balanced bridge temperature regulator for an air-mass flow meterPIERBURG AG·Filed 1999·Granted May 14, 2002·6 cites·4 claims
- 3228US6176689B1Electrically driven air pumpPIERBURG AG·Filed 1999·Granted Jan 23, 2001·10 cites·8 claims
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