Inventor · disambiguated record
Jeffrey M. Hutmacher
Also filed as: HUTMACHER JEFFREY M
16 granted patents·69 citations·filing 2005–2024
90Inventor score
Top patents by PatentIndex Score
16 records- 0194US7793489B2Fuel control for robust detection of catalytic converter oxygen storage capacityGM GLOBAL TECH OPERATIONS INC·Filed 2005·Granted Sep 14, 2010·33 cites·13 claims
- 0289US11661902B1Port-direct injection engine systems and methods using ethanol-gasoline fuelsGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted May 30, 2023·3 cites·20 claims
- 0388US10066576B2Dual injection during intake stroke for improved catalyst light offGM GLOBAL TECH OPERATIONS LLC·Filed 2016·Granted Sep 4, 2018·4 cites·19 claims
- 0484US10526992B2Method and system to detect and mitigate sensor degradationGM GLOBAL TECH OPERATIONS LLC·Filed 2017·Granted Jan 7, 2020·3 cites·11 claims
- 0581US8838316B2Method of controlling catalyst light-off of a hybrid vehicleGM GLOBAL TECH OPERATIONS INC·Filed 2012·Granted Sep 16, 2014·8 cites·12 claims
- 0679US10914262B1Diagnostic methods and systemsGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted Feb 9, 2021·2 cites·16 claims
- 0779US10883436B2Method and system to control propulsion systems having sensor or actuator degradationGM GLOBAL TECH OPERATIONS LLC·Filed 2017·Granted Jan 5, 2021·2 cites·13 claims
- 0876US8950379B2Measured fuel rail pressure adjustment systems and methodsHATTAR RAFAT F·Filed 2012·Granted Feb 10, 2015·5 cites·20 claims
- 0975US9200975B2Pressure diagnostic system and methodHATTAR RAFAT F·Filed 2011·Granted Dec 1, 2015·4 cites·20 claims
- 1065US7848874B2Control system and method for starting an engine with port fuel injection and a variable pressure fuel systemGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted Dec 7, 2010·5 cites·17 claims
- 1163US12196148B1Dual fuel injector control method for a vehicleGM GLOBAL TECH OPERATIONS LLC·Filed 2024·Granted Jan 14, 2025·0 cites·18 claims
- 1260US12281622B1Fuel control system for internal combustion engine having multiple injection systemsGM GLOBAL TECH OPERATIONS LLC·Filed 2024·Granted Apr 22, 2025·0 cites·18 claims
- 1360US11098666B1System and method for controlling amount of sulfur on three-way catalyst by limiting deceleration cylinder cut offGM GLOBAL TECH OPERATIONS LLC·Filed 2020·Granted Aug 24, 2021·0 cites·20 claims
- 1455US12140092B1Methods and systems for controlling fuel injectionGM GLOBAL TECH OPERATIONS LLC·Filed 2023·Granted Nov 12, 2024·0 cites·20 claims
- 1550US11773791B1Multi-pulse fuel injection systems and control logic for port fuel injection pulse monitoring in engine assembliesGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Oct 3, 2023·0 cites·20 claims
- 1647US11236695B2Diagnostic methods and systemsGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted Feb 1, 2022·0 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →