Inventor · disambiguated record
Istvan Geiger
Also filed as: GEIGER ISTVAN
12 granted patents·252 citations·filing 1978–1997
93Inventor score
Top patents by PatentIndex Score
12 records- 0192US4351281AMethod and system for operation of a spark-ignited internal combustion engineVOLKSWAGENWERK AG·Filed 1981·Granted Sep 28, 1982·40 cites·16 claims
- 0287US4344397AMethod for operation of a spark-ignited internal combustion engine and arrangement for execution of the methodVOLKSWAGENWERK AG·Filed 1980·Granted Aug 17, 1982·33 cites·12 claims
- 0382US4261315AMethod and apparatus for controlling the operation of an internal combustion engine with spark ignitionVOLKSWAGENWERK AG·Filed 1979·Granted Apr 14, 1981·17 cites·10 claims
- 0475US4616617AMethod and arrangement for combustion chamber identification in an internal combustion engineVOLKSWAGENWERK AG·Filed 1985·Granted Oct 14, 1986·22 cites·7 claims
- 0569US5133184AMethod and apparatus for monitoring the conversion ratio of a catalytic converterVOLKSWAGEN AG·Filed 1991·Granted Jul 28, 1992·37 cites·13 claims
- 0666US4895125AApparatus for the feedback of exhaust gases in an internal combustion engineVOLKSWAGEN AG·Filed 1988·Granted Jan 23, 1990·15 cites·8 claims
- 0765US4338899AMethod and apparatus for controlling the idling operation of a spark-ignited internal combustion engineVOLKSWAGENWERK AG·Filed 1979·Granted Jul 13, 1982·22 cites·9 claims
- 0859US5950420AMethod and arrangement for controlling exhaust emissions from an internal combustion engineVOLKSWAGEN AG·Filed 1997·Granted Sep 14, 1999·28 cites·16 claims
- 0951US4155339AApparatus for diverting an exhaust streamVOLKSWAGENWERK AG·Filed 1978·Granted May 22, 1979·7 cites·10 claims
- 1047US5250268ACatalytic cleaning arrangement for exhaust from an internal combustion engineVOLKSWAGEN AG·Filed 1992·Granted Oct 5, 1993·19 cites·14 claims
- 1144US4155338AValved apparatus for diverting an exhaust streamVOLKSWAGENWERK AG·Filed 1978·Granted May 22, 1979·5 cites·11 claims
- 1240US5544636AMethod for obtaining trigger signals to regulate energy conversion in the combustion chamber of an internal combustion engineVOLKSWAGEN AG·Filed 1994·Granted Aug 13, 1996·7 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →