Inventor · disambiguated record
Joshua W. Steffen
Also filed as: STEFFEN JOSHUA · STEFFEN JOSHUA W · STEFFEN JOSHUA WAYNE
31 granted patents·10 pending applications·80 citations·filing 2012–2024
95Inventor score
Top patents by PatentIndex Score
41 records- 0196US11326694B2Cryogenic piston ring improvementACD LLC·Filed 2020·Granted May 10, 2022·4 cites·12 claims
- 0294US9828987B2System and method for priming a pumpCATERPILLAR INC·Filed 2015·Granted Nov 28, 2017·7 cites·18 claims
- 0394US9188069B2Gaseous fuel system, direct injection gas engine system, and methodCATERPILLAR INC·Filed 2012·Granted Nov 17, 2015·14 cites·10 claims
- 0490US8936009B2Fuel system having dual fuel pressure regulatorCATERPILLAR INC·Filed 2012·Granted Jan 20, 2015·10 cites·20 claims
- 0589US10146242B2Micro grid power systemCATERPILLAR INC·Filed 2016·Granted Dec 4, 2018·4 cites·4 claims
- 0689US9915251B2Fuel system having serially arranged in-tank pumpsCATERPILLAR INC·Filed 2015·Granted Mar 13, 2018·5 cites·15 claims
- 0787US8944033B2Limp home capable dual fuel engine and machine using sameCOLDREN DANA R·Filed 2012·Granted Feb 3, 2015·7 cites·14 claims
- 0886US10041447B2Pump manifoldCATERPILLAR INC·Filed 2015·Granted Aug 7, 2018·4 cites·19 claims
- 0981US10371065B2High pressure fluid control system and method of controlling pressure bias in an end use deviceWESTPORT POWER INC·Filed 2016·Granted Aug 6, 2019·3 cites·20 claims
- 1081US10060421B2Hydraulic drive multi-element cryogenic pumpCATERPILLAR INC·Filed 2015·Granted Aug 28, 2018·3 cites·13 claims
- 1177US9982669B2Variable retraction rate pump and method for operating sameCATERPILLAR INC·Filed 2014·Granted May 29, 2018·3 cites·6 claims
- 1275US9989048B2End of stroke detection for plunger velocity correctionCATERPILLAR INC·Filed 2015·Granted Jun 5, 2018·2 cites·12 claims
- 1374US8960100B2Energy recovery system for a mobile machineFOEGE AARON GAMACHE·Filed 2012·Granted Feb 24, 2015·3 cites·20 claims
- 1471US8857162B2Coolant warm-up using exhaustCATERPILLAR INC·Filed 2012·Granted Oct 14, 2014·2 cites·20 claims
- 1567US2025052373A1Closed-loop net positive suction pressure control for cryogenic liquid pumpCHART INC·Filed 2024·Application pending·0 cites
- 1666US10041484B2Pump having inlet reservoir with vapor-layer standpipeCATERPILLAR INC·Filed 2015·Granted Aug 7, 2018·1 cites·9 claims
- 1766US10024311B2Cryogenic pump for liquefied natural gasCATERPILLAR INC·Filed 2015·Granted Jul 17, 2018·1 cites·16 claims
- 1866US9091240B2Compressed natural gas fuel mass control systemCATERPILLAR INC·Filed 2013·Granted Jul 28, 2015·3 cites·18 claims
- 1963US9695758B2Fuel system having multiple combustion modesCATERPILLAR INC·Filed 2014·Granted Jul 4, 2017·1 cites·18 claims
- 2061US9127600B2Method and apparatus for generating useful work from the vent gas of a dual fuel internal combustion engineCOLDREN DANA R·Filed 2012·Granted Sep 8, 2015·1 cites·21 claims
- 2161US8991363B2Dual fuel system diagnostics for dual fuel engine and machine using sameSTEFFEN JOSHUA W·Filed 2012·Granted Mar 31, 2015·2 cites·15 claims
- 2257US2023383911A1Cryogenic Fluid Dispensing System and MethodCHART INC·Filed 2023·Application pending·0 cites
- 2354US10036383B2Pump piston having variable diameterCATERPILLAR INC·Filed 2015·Granted Jul 31, 2018·0 cites·18 claims
- 2452US9909582B2Pump with plunger having tribological coatingCATERPILLAR INC·Filed 2015·Granted Mar 6, 2018·0 cites·16 claims
- 2550US9828976B2Pump for cryogenic liquids having temperature managed pumping mechanismCATERPILLAR INC·Filed 2015·Granted Nov 28, 2017·0 cites·19 claims
- 2649US2014137572A1Natural Gas Vehicle Vented Gas Capture SystemCATERPILLAR INC·Filed 2012·Application pending·0 cites
- 2748US9371784B2Dual fuel system having a damperCATERPILLAR INC·Filed 2012·Granted Jun 21, 2016·0 cites·13 claims
- 2848US9108644B2Fuel pressure actuated coupling for train consistELECTRO MOTIVE DIESEL INC·Filed 2012·Granted Aug 18, 2015·0 cites·16 claims
- 2947US9228507B2Dual fuel common rail system and diesel only method of operating sameCATERPILLAR INC·Filed 2013·Granted Jan 5, 2016·0 cites·19 claims
- 3047US2014130778A1Method of operating engineCATERPILLAR INC·Filed 2014·Application pending·0 cites
- 3146US9926922B2Barrel assembly for a fluid pump having separate plunger bore and outlet passageCATERPILLAR INC·Filed 2015·Granted Mar 27, 2018·0 cites·17 claims
- 3245US9810163B2Multiple element firing strategy for cryogenic pumpCATERPILLAR INC·Filed 2015·Granted Nov 7, 2017·0 cites·20 claims
- 3345US2014130522A1Liquefied Gas Supply Conditioning System and MethodCATERPILLAR INC·Filed 2012·Application pending·0 cites
- 3445US2014182559A1Gaseous Fuel System, Direct Injection Gas Engine System, and MethodCATERPILLAR INC·Filed 2012·Application pending·0 cites
- 3541US10006449B2Bearing arrangement for cryogenic pumpCATERPILLAR INC·Filed 2015·Granted Jun 26, 2018·0 cites·18 claims
- 3641US9945364B2Hydraulic distributor for pumpCATERPILLAR INC·Filed 2015·Granted Apr 17, 2018·0 cites·16 claims
- 3741US2014116520A1Fuel system having dual fuel pressure regulatorCATERPILLAR INC·Filed 2012·Application pending·0 cites
- 3838US2016222949A1Pumping mechanism with plungerCATERPILLAR INC·Filed 2015·Application pending·0 cites
- 3938US2017030341A1Multi-plunger cryogenic pump having intake manifoldCATERPILLAR INC·Filed 2015·Application pending·0 cites
- 4037US2017045022A1System Configured to Pump FuelCATERPILLAR INC·Filed 2015·Application pending·0 cites
- 4134US9638348B2Gas flow limiter for a fuel system and process for use thereofCATERPILLAR INC·Filed 2015·Granted May 2, 2017·0 cites·20 claims
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