Inventor · disambiguated record
John C. Hedrick
Also filed as: HEDRICK JOHN C · HEDRICK JOHN CRAIG
13 granted patents·1 pending application·287 citations·filing 1997–2024
90Inventor score
Top patents by PatentIndex Score
14 records- 0195US5890459ASystem and method for a dual fuel, direct injection combustion engineSOUTHWEST RES INST·Filed 1997·Granted Apr 6, 1999·103 cites·4 claims
- 0294US6494192B1On-board fuel vapor collection, condensation, storage and distribution system for a vehicleSOUTHWEST RES INST·Filed 2001·Granted Dec 17, 2002·96 cites·10 claims
- 0388US6318309B1Opposed piston engine with reserve power capacitySOUTHWEST RES INST·Filed 2000·Granted Nov 20, 2001·42 cites·7 claims
- 0474US6062178AMethod of operating uni-flow two-cycle engine during reduced load conditionsSOUTHWEST RES INST·Filed 1998·Granted May 16, 2000·30 cites·18 claims
- 0572US10428707B2Partial-flow diesel particulate filter using pressure regulated bypassSOUTHWEST RES INST·Filed 2014·Granted Oct 1, 2019·3 cites·21 claims
- 0652US10837385B2Exhaust gas temperature assist for two-cycle uniflow scavenged diesel engine at lower engine loadsYELIR INC·Filed 2018·Granted Nov 17, 2020·0 cites·19 claims
- 0749US11333091B2Exhaust gas temperature assist for two-cycle uniflow scavenged diesel engines at lower engine loads with various engine operating schemesYELIR INC·Filed 2020·Granted May 17, 2022·0 cites·20 claims
- 0847US2025264068A1Operating Modes for Two-Cycle Uniflow-Scavenged Diesel EngineYELIR INC·Filed 2024·Application pending·0 cites
- 0946US9803571B2Dual-fuel diesel engine with cylinder fueling control of gaseous fueling at less than full loadsSOUTHWEST RES INST·Filed 2016·Granted Oct 31, 2017·0 cites·9 claims
- 1046US7059278B2Locomotive engine charge air cooling system and method for cooling the engineSOUTHWEST RES INST·Filed 2004·Granted Jun 13, 2006·8 cites·24 claims
- 1144US9995206B2Intake air boost system for two-cycle engine having turbo-superchargerSOUTHWEST RES INST·Filed 2016·Granted Jun 12, 2018·0 cites·10 claims
- 1236US6990857B1Fuel injector timing toolSOUTHWEST RES INST·Filed 2004·Granted Jan 31, 2006·1 cites·8 claims
- 1332US10690045B2Intake air boost system for two-cycle engine having roots blowersSOUTHWEST RES INST·Filed 2017·Granted Jun 23, 2020·0 cites·16 claims
- 1432US6227174B1Plunger-activated unit injector for internal combustion enginesSOUTHWEST RES INST·Filed 1999·Granted May 8, 2001·4 cites·18 claims
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