Inventor · disambiguated record
Mark F. Sommars
Also filed as: SOMMARS MARK · SOMMARS MARK F · SOMMARS MARK FREDERICK
47 granted patents·5 pending applications·885 citations·filing 1975–2015
98Inventor score
Top patents by PatentIndex Score
52 records- 0198US5697342AHydraulically-actuated fuel injector with direct control needle valveCATERPILLAR INC·Filed 1996·Granted Dec 16, 1997·121 cites·43 claims
- 0298US5494219AFuel injection control valve with dual solenoidsCATERPILLAR INC·Filed 1994·Granted Feb 27, 1996·137 cites·37 claims
- 0397US8967502B2Dual fuel injector and engine using sameKIM HOISAN·Filed 2011·Granted Mar 3, 2015·22 cites·9 claims
- 0497US8459576B2Dual fuel injector for a common rail systemKIM HOISAN·Filed 2011·Granted Jun 11, 2013·28 cites·18 claims
- 0596US9027534B2Dual fuel engine and strategy to avoid atmospheric ventingCATERPILLAR INC·Filed 2012·Granted May 12, 2015·15 cites·20 claims
- 0696US7588012B2Fuel system having variable injection pressureCATERPILLAR INC·Filed 2005·Granted Sep 15, 2009·29 cites·20 claims
- 0795US7451742B2Engine having common rail intensifier and methodCATERPILLAR INC·Filed 2007·Granted Nov 18, 2008·22 cites·20 claims
- 0895US5628293AElectronically-controlled fluid injector system having pre-injection pressurizable fluid storage chamber and direct-operated checkCATERPILLAR INC·Filed 1995·Granted May 13, 1997·77 cites·57 claims
- 0995US5551398AElectronically-controlled fluid injector system having pre-injection pressurizable fluid storage chamber and direct-operated checkCATERPILLAR INC·Filed 1995·Granted Sep 3, 1996·68 cites·24 claims
- 1092US8844842B2Three-way needle control valve and dual fuel injection system using sameKIM HOISAN·Filed 2011·Granted Sep 30, 2014·15 cites·15 claims
- 1192US8596561B2Dual fuel injector with hydraulic lock sealKIM HOISAN·Filed 2011·Granted Dec 3, 2013·16 cites·20 claims
- 1292US6530363B1Variable delivery pump and common rail fuel system using the sameCATERPILLAR INC·Filed 2000·Granted Mar 11, 2003·39 cites·20 claims
- 1391US9234472B2Dual fuel engine and evaporated natural gas systemKIM HOISAN·Filed 2012·Granted Jan 12, 2016·10 cites·14 claims
- 1491US8683979B2Dual fuel common rail system and engine using sameKIM HOISAN·Filed 2011·Granted Apr 1, 2014·10 cites·20 claims
- 1590US8783229B2Internal combustion engine, combustion charge formation system, and methodKIM HOISAN·Filed 2010·Granted Jul 22, 2014·9 cites·20 claims
- 1690US8522752B2Co-axial quill assembly for dual fuel common rail systemKIM HOISAN·Filed 2010·Granted Sep 3, 2013·8 cites·20 claims
- 1789US9624845B2Dual fuel injector and engine using sameCATERPILLAR INC·Filed 2015·Granted Apr 18, 2017·3 cites·20 claims
- 1889US5878720AHydraulically actuated fuel injector with proportional controlCATERPILLAR INC·Filed 1997·Granted Mar 9, 1999·51 cites·20 claims
- 1988US9422899B2Dual fuel injector with hydraulic lock seal and liquid leak purge strategyKIM HOISAN·Filed 2011·Granted Aug 23, 2016·11 cites·7 claims
- 2086US8925519B2Dual fuel common rail system and fuel injectorKIM HOISAN·Filed 2011·Granted Jan 6, 2015·7 cites·20 claims
- 2184US8978623B2Dual fuel injector having fuel leak sealsSOMMARS MARK F·Filed 2011·Granted Mar 17, 2015·6 cites·20 claims
- 2284US7398763B2Multi-source fuel system for variable pressure injectionCATERPILLAR INC·Filed 2006·Granted Jul 15, 2008·11 cites·21 claims
- 2382US9206778B2Dual fuel injector with F, A and Z orifice controlCATERPILLAR INC·Filed 2013·Granted Dec 8, 2015·5 cites·18 claims
- 2482US7179060B2Variable discharge pump with two pumping plungers and shared shuttle memberCATERPILLAR INC·Filed 2002·Granted Feb 20, 2007·18 cites·8 claims
- 2581US8881709B2Fluid injector with back end rate shaping capabilityKIM HOISAN·Filed 2011·Granted Nov 11, 2014·4 cites·20 claims
- 2680US8997720B2Dual fuel injector with crossover valveBROWN CORY A·Filed 2012·Granted Apr 7, 2015·9 cites·16 claims
- 2780US8905059B2Diesel fuel leakage control system for a dual fuel injectorSOMMARS MARK F·Filed 2012·Granted Dec 9, 2014·5 cites·20 claims
- 2878US4295521AHeat exchanger core mounting apparatusCATERPILLAR TRACTOR CO·Filed 1980·Granted Oct 20, 1981·33 cites·7 claims
- 2978US4041803ARubber torsional vibration damper with cooling meansCATERPILLAR TRACTOR CO·Filed 1975·Granted Aug 16, 1977·27 cites·10 claims
- 3068US6644277B2High pressure pump and engine system using the sameCATERPILLAR INC·Filed 2001·Granted Nov 11, 2003·10 cites·15 claims
- 3162US7690588B2Fuel injector nozzle with flow restricting deviceCATERPILLAR INC·Filed 2007·Granted Apr 6, 2010·3 cites·20 claims
- 3259US9863333B2Dual fuel injector and engine using sameCATERPILLAR INC·Filed 2015·Granted Jan 9, 2018·0 cites·13 claims
- 3359US9416760B2Three-way needle control valve and dual fuel injection system using sameCATERPILLAR INC·Filed 2014·Granted Aug 16, 2016·1 cites·18 claims
- 3454US7506825B2Fuel injector control systemCATERPILLAR INC·Filed 2006·Granted Mar 24, 2009·2 cites·20 claims
- 3551US7762238B2Sleeve metered unit pump and fuel injection system using the sameCATERPILLAR INC·Filed 2002·Granted Jul 27, 2010·2 cites·12 claims
- 3649US8833344B2Dual fuel injector feed using differential length quillsHACKETT DAVID ELLIOT·Filed 2011·Granted Sep 16, 2014·0 cites·20 claims
- 3749US4037575AAltitude compensated fuel control systemCATERPILLAR TRACTOR CO·Filed 1975·Granted Jul 26, 1977·8 cites·6 claims
- 3848US6464473B2Pump apparatus for hydraulically powered fuel injection systemsCATERPILLAR INC·Filed 2001·Granted Oct 15, 2002·3 cites·11 claims
- 3948US5826802ADamped check valve for fluid injector systemCATERPILLAR INC·Filed 1995·Granted Oct 27, 1998·12 cites·17 claims
- 4048US5717372ADual armature solenoidCATERPILLAR INC·Filed 1995·Granted Feb 10, 1998·12 cites·6 claims
- 4146US9441587B2Pressure regulator having an integrated check valveCATERPILLAR INC·Filed 2012·Granted Sep 13, 2016·0 cites·13 claims
- 4246US2011048379A1Fluid injector with rate shaping capabilityCATERPILLAR INC·Filed 2009·Application pending·0 cites
- 4345US2007086899A1Fuel system with variable discharge pumpSOMMARS MARK F·Filed 2006·Application pending·0 cites
- 4444US8082902B2Piezo intensifier fuel injector and engine using sameKIM HOISAN·Filed 2007·Granted Dec 27, 2011·0 cites·19 claims
- 4539US2006202053A1Control valve assembly and fuel injector using sameGIBSON DENNIS H·Filed 2005·Application pending·0 cites
- 4638US2012255523A1Dual fuel injector and engine using sameKIM HOISAN·Filed 2011·Application pending·0 cites
- 4737US6354186B1Hydrostatic thrust bearing for a wobble plate pumpCATERPILLAR INC·Filed 1999·Granted Mar 12, 2002·6 cites·4 claims
- 4837US6267561B1Variable delivery, fixed displacement pumpCATERPILLAR INC·Filed 1999·Granted Jul 31, 2001·6 cites·16 claims
- 4937US2006196974A1Fuel injector having a gradually restricted drain passagewayCATERPILLAR INC·Filed 2005·Application pending·0 cites
- 5035US9181881B2Co-axial quill assembly retainer and dual fuel common rail engine using sameBALDWIN DANIEL R·Filed 2012·Granted Nov 10, 2015·0 cites·15 claims
Showing the top 50 of 52 patent records by PatentIndex Score.
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