Assignee
STURMAN DIGITAL SYSTEMS LLC
US·19 granted patents·6 pending applications·211 citations·filing 2006–2020
Top patents by PatentIndex Score
25 records- 0197US7954472B1High performance, low emission engines, multiple cylinder engines and operating methodsSTURMAN DIGITAL SYSTEMS LLC·Filed 2008·Granted Jun 7, 2011·40 cites·25 claims
- 0295US7958864B2Compression ignition engines and methodsSTURMAN DIGITAL SYSTEMS LLC·Filed 2009·Granted Jun 14, 2011·32 cites·12 claims
- 0395US7694891B2Fuel injector with boosted needle closureSTURMAN DIGITAL SYSTEMS LLC·Filed 2009·Granted Apr 13, 2010·21 cites·7 claims
- 0494US11152839B2Hydraulically powered electric generatorsSTURMAN DIGITAL SYSTEMS LLC·Filed 2020·Granted Oct 19, 2021·3 cites·24 claims
- 0594US8342153B2Digital fuel injector, injection and hydraulic valve actuation module and engine and high pressure pump methods and apparatusSTURMAN DIGITAL SYSTEMS LLC·Filed 2009·Granted Jan 1, 2013·18 cites·8 claims
- 0694US7717359B2Multiple intensifier injectors with positive needle control and methods of injectionSTURMAN DIGITAL SYSTEMS LLC·Filed 2008·Granted May 18, 2010·18 cites·7 claims
- 0794US7568632B2Fuel injector with boosted needle closureSTURMAN DIGITAL SYSTEMS LLC·Filed 2007·Granted Aug 4, 2009·19 cites·7 claims
- 0893US9932894B2Variable compression ratio engines and methods for HCCI compression ignition operationSTURMAN DIGITAL SYSTEMS LLC·Filed 2014·Granted Apr 3, 2018·8 cites·34 claims
- 0993US7793638B2Low emission high performance engines, multiple cylinder engines and operating methodsSTURMAN DIGITAL SYSTEMS LLC·Filed 2007·Granted Sep 14, 2010·22 cites·61 claims
- 1091US7568633B2Digital fuel injector, injection and hydraulic valve actuation module and engine and high pressure pump methods and apparatusSTURMAN DIGITAL SYSTEMS LLC·Filed 2006·Granted Aug 4, 2009·20 cites·6 claims
- 1187US8365701B1Diesel engines operating with an equivalence ratio near unitySTURMAN DIGITAL SYSTEMS LLC·Filed 2010·Granted Feb 5, 2013·7 cites·28 claims
- 1276US10352228B2Liquid and gaseous multi-fuel compression ignition enginesSTURMAN DIGITAL SYSTEMS LLC·Filed 2016·Granted Jul 16, 2019·1 cites·25 claims
- 1371US11073070B2Liquid and gaseous multi-fuel compression ignition enginesSTURMAN DIGITAL SYSTEMS LLC·Filed 2019·Granted Jul 27, 2021·0 cites·10 claims
- 1469US11255260B2Variable compression ratio engines and methods for HCCI compression ignition operationSTURMAN DIGITAL SYSTEMS LLC·Filed 2020·Granted Feb 22, 2022·0 cites·20 claims
- 1568US10563573B2Variable compression ratio engines and methods for HCCI compression ignition operationSTURMAN DIGITAL SYSTEMS LLC·Filed 2018·Granted Feb 18, 2020·0 cites·21 claims
- 1663US7775240B2Spool valveSTURMAN DIGITAL SYSTEMS LLC·Filed 2007·Granted Aug 17, 2010·2 cites·24 claims
- 1754US11519321B2Fully flexible, self-optimizing, digital hydraulic engines and methods with preheatSTURMAN DIGITAL SYSTEMS LLC·Filed 2018·Granted Dec 6, 2022·0 cites·22 claims
- 1854US11015537B2Multiple engine block and multiple engine internal combustion power plants for both stationary and mobile applicationsSTURMAN DIGITAL SYSTEMS LLC·Filed 2019·Granted May 25, 2021·0 cites·31 claims
- 1951US2010012745A1Fuel Injectors with Intensified Fuel Storage and Methods of Operating an Engine TherewithSTURMAN DIGITAL SYSTEMS LLC·Filed 2009·Application pending·0 cites
- 2050US7958909B2Spool valveSTURMAN DIGITAL SYSTEMS LLC·Filed 2010·Granted Jun 14, 2011·0 cites·9 claims
- 2148US2007113906A1Pressure balanced spool poppet valves with printed actuator coilsSTURMAN DIGITAL SYSTEMS LLC·Filed 2006·Application pending·0 cites
- 2246US2018100469A1Dual Fuel Ammonia Combustion in Diesel EnginesSTURMAN DIGITAL SYSTEMS LLC·Filed 2017·Application pending·0 cites
- 2345US2008264393A1Methods of Operating Low Emission High Performance Compression Ignition EnginesSTURMAN DIGITAL SYSTEMS LLC·Filed 2008·Application pending·0 cites
- 2443US2007252012A1Digital Fluid Temperature Control ValveSTURMAN DIGITAL SYSTEMS LLC·Filed 2007·Application pending·0 cites
- 2541US2007215078A1Methods and apparatus to use engine valves as both intake and exhaust valvesSTURMAN DIGITAL SYSTEMS LLC·Filed 2007·Application pending·0 cites
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