Inventor · disambiguated record
Gerhard Lepperhoff
Also filed as: LEPPERHOFF GERHARD
16 granted patents·505 citations·filing 1986–2009
95Inventor score
Files withFEV MOTORENTECH GMBH & CO KG9FEV MOTORENTECH GMBH3FEV FORSCH ENERGIETECH VERBR2FRAUNHOFER GES FORSCHUNG1LAVISION GMBH1
Top patents by PatentIndex Score
16 records- 0193US4730455AProcess and system for the regeneration of particulate filter trapsFEV MOTORENTECH GMBH & CO KG·Filed 1987·Granted Mar 15, 1988·60 cites·11 claims
- 0290US5671600AMethod of reducing the NOx emission of a supercharged piston-type internal combustion engineFEV MOTORENTECH GMBH & CO KG·Filed 1995·Granted Sep 30, 1997·62 cites·4 claims
- 0389US4897096ASystem for the regeneration of a particulate filter trapFEV MOTORENTECH GMBH & CO KG·Filed 1988·Granted Jan 30, 1990·69 cites·3 claims
- 0489US4730454AProcess and system for the oxidation of engine emission particulates deposited in a particulate filter trapFEV FORSCH ENERGIETECH VERBR·Filed 1986·Granted Mar 15, 1988·66 cites·24 claims
- 0583US4872889AFilter system for the removal of engine emission particulatesFEV MOTORENTECH GMBH & CO KG·Filed 1988·Granted Oct 10, 1989·55 cites·14 claims
- 0676US4634459AParticle filtration and removal systemFEV FORSCH ENERGIETECH VERBR·Filed 1986·Granted Jan 6, 1987·42 cites·12 claims
- 0767US6185930B1Method for reducing pollutant emission in motor vehiclesFEV MOTORENTECH GMBH·Filed 1999·Granted Feb 13, 2001·36 cites·6 claims
- 0864US4709549AAssembly for engine exhaust gas particulate filter trapsFEV MOTORENTECH GMBH & CO KG·Filed 1987·Granted Dec 1, 1987·27 cites·3 claims
- 0959USRE42771EMethod of operation of a device for energy conversion using a main fuel and at least one auxiliary fuelFEV MOTORENTECH GMBH·Filed 2009·Granted Oct 4, 2011·0 cites·22 claims
- 1058US7207318B2Method for operation of a device for energy conversion using a main fuel and at least one auxiliary fuelFEV MOTORENTECH GMBH·Filed 2004·Granted Apr 24, 2007·5 cites·13 claims
- 1158US5472462AFilter arrangement for removal of soot particles from the exhaust gases of an internal combustion engineFEV MOTORENTECH GMBH & CO KG·Filed 1993·Granted Dec 5, 1995·27 cites·5 claims
- 1254US6335790B1Method for determining the spatial concentration of the components of a gas mixture in a combustion chamberLAVISION GMBH·Filed 2000·Granted Jan 1, 2002·1 cites·7 claims
- 1353US4948403AFilter system for the removal of engine emission particulatesFEV MOTORENTECH GMBH & CO KG·Filed 1989·Granted Aug 14, 1990·22 cites·4 claims
- 1449US4709547AProcess for the regeneration of engine emission particulates deposited in a particulate trapFEV MOTORENTECH GMBH & CO KG·Filed 1987·Granted Dec 1, 1987·16 cites·13 claims
- 1539US6202408B1Method and apparatus for a zero-point stabilization of an exaust gas sensorFEV MOTORENTECH GMBH & CO KG·Filed 1999·Granted Mar 20, 2001·9 cites·5 claims
- 1634US6269631B1Process and device for operating an internal combustion engine with less pollutant emissionFRAUNHOFER GES FORSCHUNG·Filed 1997·Granted Aug 7, 2001·8 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →