Inventor · disambiguated record
John W. Siekkinen
Also filed as: SIEKKINEN JOHN W
24 granted patents·2 pending applications·136 citations·filing 2003–2018
95Inventor score
Files withGM GLOBAL TECH OPERATIONS INC9GM GLOBAL TECH OPERATIONS LLC5ANILOVICH IGOR4LEVIJOKI STEPHEN PAUL3BIALAS DANIEL A2
Top patents by PatentIndex Score
26 records- 0194US9297843B2Fault diagnostic systems and methods using oxygen sensor impedanceGM GLOBAL TECH OPERATIONS INC·Filed 2013·Granted Mar 29, 2016·15 cites·16 claims
- 0288US10060985B2System and method for monitoring temperatures of components of an ultra-capacitor system used with an auto start/stop systemGM GLOBAL TECH OPERATIONS LLC·Filed 2015·Granted Aug 28, 2018·6 cites·16 claims
- 0384US8813693B2Diagnostic system and method for a switchable water pumpBIALAS DANIEL A·Filed 2011·Granted Aug 26, 2014·7 cites·20 claims
- 0483US7467628B2Oxygen sensor heater control methods and systemsGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Dec 23, 2008·14 cites·11 claims
- 0582US8583349B2Systems and methods for diagnosing oxygen sensors and catalytic converters of exhaust systemsANILOVICH IGOR·Filed 2009·Granted Nov 12, 2013·16 cites·19 claims
- 0681US8086392B2Post oxygen sensor performance diagnostic with minimum air flowANILOVICH IGOR·Filed 2009·Granted Dec 27, 2011·11 cites·20 claims
- 0780US10026238B2System and method for converting two diagnostic states of a controller to three diagnostic statesGM GLOBAL TECH OPERATIONS LLC·Filed 2015·Granted Jul 17, 2018·3 cites·18 claims
- 0880US8620516B2System and method for performing engine material temperature sensor diagnosticsANILOVICH IGOR·Filed 2011·Granted Dec 31, 2013·5 cites·15 claims
- 0979US10202958B2System and method for controlling ultra-capacitor charge and discharge in vehicles with auto start/stop systemsGM GLOBAL TECH OPERATIONS LLC·Filed 2015·Granted Feb 12, 2019·3 cites·13 claims
- 1079US7921705B2Engine coolant temperature estimation systemGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted Apr 12, 2011·12 cites·13 claims
- 1179US7873464B2Block heater usage detection and coolant temperature adjustmentGM GLOBAL TECH OPERATIONS INC·Filed 2009·Granted Jan 18, 2011·10 cites·22 claims
- 1273US8046150B2Engine cooling system diagnostic for applications with two coolant sensorsGM GLOBAL TECH OPERATIONS INC·Filed 2009·Granted Oct 25, 2011·10 cites·12 claims
- 1371US9151211B2Method of monitoring an engine coolant system of a vehicleANILOVICH IGOR·Filed 2011·Granted Oct 6, 2015·4 cites·17 claims
- 1469US7968827B2Oxygen sensor heater control strategyGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted Jun 28, 2011·6 cites·24 claims
- 1566US10190481B2Minimum power consumption for cool down diagnostic based on cylinder deactivationGM GLOBAL TECH OPERATIONS LLC·Filed 2013·Granted Jan 29, 2019·2 cites·18 claims
- 1661US9146177B2System and method for diagnosing a fault in an oxygen sensor based on engine speedGM GLOBAL TECH OPERATIONS INC·Filed 2012·Granted Sep 29, 2015·1 cites·20 claims
- 1761US8014930B2System and method for determining oxygen sensor heater resistanceGM GLOBAL TECH OPERATIONS INC·Filed 2009·Granted Sep 6, 2011·4 cites·16 claims
- 1859US8939010B2System and method for diagnosing faults in an oxygen sensorLEVIJOKI STEPHEN PAUL·Filed 2011·Granted Jan 27, 2015·1 cites·20 claims
- 1958US8166808B2Engine heater use detection systems and methodsBIALAS DANIEL A·Filed 2010·Granted May 1, 2012·1 cites·20 claims
- 2056US9103267B2Low coolant temperature fault diagnostic systems and methodsLEVIJOKI STEPHEN PAUL·Filed 2012·Granted Aug 11, 2015·1 cites·18 claims
- 2152US7881859B2Torque converter clutch control system and post oxygen sensor performance diagnostic systemGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted Feb 1, 2011·2 cites·18 claims
- 2248US7193178B2Method and apparatus for controlling the heating of an oxygen sensor in a motor vehicleGEN MOTORS CORP·Filed 2003·Granted Mar 20, 2007·2 cites·18 claims
- 2345US9181844B2Diagnostic system and method for an oxygen sensor positioned downstream from a catalytic converterLEVIJOKI STEPHEN PAUL·Filed 2011·Granted Nov 10, 2015·0 cites·27 claims
- 2443US9096210B2Coordination of fuel cutoff for fault detection and hybrid operationWHITNEY CHRISTOPHER E·Filed 2012·Granted Aug 4, 2015·0 cites·20 claims
- 2538US2020049091A1Oxygen sensor diagnosticGM GLOBAL TECH OPERATIONS LLC·Filed 2018·Application pending·0 cites
- 2630US2006196487A1Fuel control compensation for exhaust sensor response time degradationBELTON DAVID N·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →