Inventor

GEIGER ISTVAN

12 patents

⚠️ This page may combine multiple inventors who share the name “GEIGER ISTVAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

VOLKSWAGENWERK AG

7 patents

US4351281ASep 28, 1982

Method and system for operation of a spark-ignited internal combustion engine

VOLKSWAGENWERK AG40 citations90

US4344397AAug 17, 1982

Method for operation of a spark-ignited internal combustion engine and arrangement for execution of the method

VOLKSWAGENWERK AG33 citations90

US4616617AOct 14, 1986

Method and arrangement for combustion chamber identification in an internal combustion engine

VOLKSWAGENWERK AG22 citations80

US4338899AJul 13, 1982

Method and apparatus for controlling the idling operation of a spark-ignited internal combustion engine

VOLKSWAGENWERK AG22 citations78

US4261315AApr 14, 1981

Method and apparatus for controlling the operation of an internal combustion engine with spark ignition

VOLKSWAGENWERK AG17 citations72

US4155339AMay 22, 1979

Apparatus for diverting an exhaust stream

VOLKSWAGENWERK AG7 citations71

US4155338AMay 22, 1979

Valved apparatus for diverting an exhaust stream

VOLKSWAGENWERK AG5 citations60

VOLKSWAGEN AG

5 patents

US5950420ASep 14, 1999

Method and arrangement for controlling exhaust emissions from an internal combustion engine

VOLKSWAGEN AG28 citations92

US5133184AJul 28, 1992

Method and apparatus for monitoring the conversion ratio of a catalytic converter

VOLKSWAGEN AG37 citations92

US5250268AOct 5, 1993

Catalytic cleaning arrangement for exhaust from an internal combustion engine

VOLKSWAGEN AG19 citations73

US4895125AJan 23, 1990

Apparatus for the feedback of exhaust gases in an internal combustion engine

VOLKSWAGEN AG15 citations73

US5544636AAug 13, 1996

Method for obtaining trigger signals to regulate energy conversion in the combustion chamber of an internal combustion engine

VOLKSWAGEN AG7 citations65