Inventor · disambiguated record
Andrew O. Marrack
Also filed as: MARRACK ANDREW O · MARRACK ANDREW OGDEN · Marrack Andrew
22 granted patents·1 pending application·35 citations·filing 2015–2024
91Inventor score
Files withCATERPILLAR INC23
Top patents by PatentIndex Score
23 records- 0196US11293370B1Method and system for valve position monitoringCATERPILLAR INC·Filed 2020·Granted Apr 5, 2022·7 cites·20 claims
- 0296US10941738B1Method and system for spill valve movement detectionCATERPILLAR INC·Filed 2020·Granted Mar 9, 2021·6 cites·20 claims
- 0394US11795887B1Fuel injector variability reductionCATERPILLAR INC·Filed 2022·Granted Oct 24, 2023·7 cites·20 claims
- 0494US11773792B1Multi-fuel injection system and injectorCATERPILLAR INC·Filed 2022·Granted Oct 3, 2023·5 cites·20 claims
- 0593US11698043B1Fuel injector for fuel system having damping adjustment valveCATERPILLAR INC·Filed 2022·Granted Jul 11, 2023·2 cites·20 claims
- 0692US11795886B2Reduced energy waveform for energizing solenoid actuator in fuel injector valveCATERPILLAR INC·Filed 2021·Granted Oct 24, 2023·3 cites·14 claims
- 0790US11313338B1Method and system for monitoring injector valvesCATERPILLAR INC·Filed 2020·Granted Apr 26, 2022·3 cites·20 claims
- 0883US12110832B2Fuel injector control system and methodCATERPILLAR INC·Filed 2022·Granted Oct 8, 2024·1 cites·20 claims
- 0974US12460596B2Fuel injector drive systemCATERPILLAR INC·Filed 2024·Granted Nov 4, 2025·0 cites·20 claims
- 1071US12486810B1Dual fuel system and method feeding same fuel at two pressures to fuel injectorCATERPILLAR INC·Filed 2024·Granted Dec 2, 2025·0 cites·19 claims
- 1170US10208727B2Fluid conditioning moduleCATERPILLAR INC·Filed 2015·Granted Feb 19, 2019·1 cites·18 claims
- 1267US12116941B1Valve timing detection in fuel system using off cycle sweepCATERPILLAR INC·Filed 2023·Granted Oct 15, 2024·0 cites·20 claims
- 1360US12253041B1Engine parasitic loading strategy using fuel pressurizationCATERPILLAR INC·Filed 2023·Granted Mar 18, 2025·0 cites·17 claims
- 1460US11994083B2Onboard diagnosis and compensation for tip wear in fuel injectorCATERPILLAR INC·Filed 2022·Granted May 28, 2024·0 cites·17 claims
- 1559US12331708B2Injection control valve in fuel injector configured for pressure reliefCATERPILLAR INC·Filed 2023·Granted Jun 17, 2025·0 cites·20 claims
- 1659US10054075B1Electric fuel pump uninterrupted power supplyCATERPILLAR INC·Filed 2017·Granted Aug 21, 2018·0 cites·20 claims
- 1758US11873776B1Fuel injector drive systemCATERPILLAR INC·Filed 2022·Granted Jan 16, 2024·0 cites·20 claims
- 1857US12410759B1Waveform for metering fuel into a fuel injectorCATERPILLAR INC·Filed 2024·Granted Sep 9, 2025·0 cites·20 claims
- 1955US11933257B2Fuel injector lift controlCATERPILLAR INC·Filed 2022·Granted Mar 19, 2024·0 cites·20 claims
- 2046US11352973B2Machine system and operating strategy using auto-population of trim filesCATERPILLAR INC·Filed 2019·Granted Jun 7, 2022·0 cites·18 claims
- 2146US10184436B2Fluid injector supply system and method for operating sameCATERPILLAR INC·Filed 2015·Granted Jan 22, 2019·0 cites·20 claims
- 2242US11174811B2Fuel system configured for back end rate shaping using mechanically actuated fuel injectorCATERPILLAR INC·Filed 2020·Granted Nov 16, 2021·0 cites·19 claims
- 2338US2016258403A1Valve assembly for a priming pumpCATERPILLAR INC·Filed 2016·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Andrew O. Marrack files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →