Inventor
LEPPERHOFF GERHARD
DE16 patents
⚠️ This page may combine multiple inventors who share the name “LEPPERHOFF GERHARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FEV MOTORENTECH GMBH & CO KG
9 patentsUS4897096AJan 30, 1990
System for the regeneration of a particulate filter trap
FEV MOTORENTECH GMBH & CO KG69 citations96
US4730455AMar 15, 1988
Process and system for the regeneration of particulate filter traps
FEV MOTORENTECH GMBH & CO KG60 citations96
US4872889AOct 10, 1989
Filter system for the removal of engine emission particulates
FEV MOTORENTECH GMBH & CO KG55 citations95
US5671600ASep 30, 1997
Method of reducing the NOx emission of a supercharged piston-type internal combustion engine
FEV MOTORENTECH GMBH & CO KG62 citations94
US4709549ADec 1, 1987
Assembly for engine exhaust gas particulate filter traps
FEV MOTORENTECH GMBH & CO KG27 citations92
US5472462ADec 5, 1995
Filter arrangement for removal of soot particles from the exhaust gases of an internal combustion engine
FEV MOTORENTECH GMBH & CO KG27 citations91
US4948403AAug 14, 1990
Filter system for the removal of engine emission particulates
FEV MOTORENTECH GMBH & CO KG22 citations78
US4709547ADec 1, 1987
Process for the regeneration of engine emission particulates deposited in a particulate trap
FEV MOTORENTECH GMBH & CO KG16 citations73
US6202408B1Mar 20, 2001
Method and apparatus for a zero-point stabilization of an exaust gas sensor
FEV MOTORENTECH GMBH & CO KG9 citations69
FEV MOTORENTECH GMBH
3 patentsUS6185930B1Feb 13, 2001
Method for reducing pollutant emission in motor vehicles
FEV MOTORENTECH GMBH36 citations86
US7207318B2Apr 24, 2007
Method for operation of a device for energy conversion using a main fuel and at least one auxiliary fuel
FEV MOTORENTECH GMBH5 citations68
USRE42771EOct 4, 2011
Method of operation of a device for energy conversion using a main fuel and at least one auxiliary fuel
FEV MOTORENTECH GMBH0 citations46