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Andrew O. Marrack

Caterpillar: 20 patents #188 of 8,398Top 3%
Overall (All Time): #214,383 of 4,157,543Top 6%
20
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12410759 Waveform for metering fuel into a fuel injector Brian V. Tranel, Dustin K. Fee, Kaushik Krishnamurthy 2025-09-09
12331708 Injection control valve in fuel injector configured for pressure relief Jeffrey Ledford, Mitchell B. Juchems 2025-06-17
12253041 Engine parasitic loading strategy using fuel pressurization Lifeng Wang, Satya Naga Deepak Pillarisetti 2025-03-18
12116941 Valve timing detection in fuel system using off cycle sweep Mitchell B. Juchems, Daniel R. Puckett, Kaushik Krishnamurthy 2024-10-15
12110832 Fuel injector control system and method Mitchell B. Juchems 2024-10-08
11994083 Onboard diagnosis and compensation for tip wear in fuel injector Daniel R. Puckett, Bradley S. Bashore 2024-05-28
11933257 Fuel injector lift control 2024-03-19
11873776 Fuel injector drive system Bradley D. Ferguson, Eric Lee Schroeder 2024-01-16
11795886 Reduced energy waveform for energizing solenoid actuator in fuel injector valve Daniel R. Puckett, Mitchell B. Juchems 2023-10-24
11795887 Fuel injector variability reduction Mitchell B. Juchems 2023-10-24
11773792 Multi-fuel injection system and injector Dana R. Coldren, Eric Lee Schroeder, Robert Graumueller 2023-10-03
11698043 Fuel injector for fuel system having damping adjustment valve 2023-07-11
11352973 Machine system and operating strategy using auto-population of trim files Martin Lehman, Vincent Neyens, Scott F. Shafer 2022-06-07
11313338 Method and system for monitoring injector valves Daniel R. Puckett, Kranti K. Nellutla, Dustin K. Fee 2022-04-26
11293370 Method and system for valve position monitoring Daniel R. Puckett, Michael Sattler, Mitchell B. Juchems 2022-04-05
11174811 Fuel system configured for back end rate shaping using mechanically actuated fuel injector 2021-11-16
10941738 Method and system for spill valve movement detection Daniel R. Puckett 2021-03-09
10208727 Fluid conditioning module Scott F. Shafer, Martin Lehman, Kenneth C. Adams 2019-02-19
10184436 Fluid injector supply system and method for operating same Scott F. Shafer, Martin Lehman, Lifeng Wang, David E. Hackett, Taylor Tang +1 more 2019-01-22
10054075 Electric fuel pump uninterrupted power supply Scott F. Shafer 2018-08-21