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
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →