Inventor · disambiguated record
Francis Parnin
Also filed as: PARNIN FRANCIS · PARNIN FRANCIS J
40 granted patents·6 pending applications·306 citations·filing 2005–2023
97Inventor score
Top patents by PatentIndex Score
46 records- 0198US8230974B2Windmill and zero gravity lubrication system for a gas turbine enginePARNIN FRANCIS·Filed 2009·Granted Jul 31, 2012·86 cites·20 claims
- 0297US11428163B2Two tier lubrication systemUNITED TECHNOLOGIES CORP·Filed 2018·Granted Aug 30, 2022·7 cites·19 claims
- 0397US10513949B2Auxiliary journal oil supply systemUNITED TECHNOLOGIES CORP·Filed 2016·Granted Dec 24, 2019·34 cites·20 claims
- 0497US10145276B2Lubricant valve monitoring method and assemblyUNITED TECHNOLOGIES CORP·Filed 2015·Granted Dec 4, 2018·17 cites·19 claims
- 0597US9494048B1Active system for bearing oil damper supply and vibration controlUNITED TECHNOLOGIES CORP·Filed 2015·Granted Nov 15, 2016·16 cites·20 claims
- 0695US10458278B2Apparatus and method for providing fluid to a bearing damperUNITED TECHNOLOGIES CORP·Filed 2016·Granted Oct 29, 2019·9 cites·10 claims
- 0794US11236637B2Auxiliary lubrication system with flow management valveUNITED TECHNOLOGIES CORP·Filed 2018·Granted Feb 1, 2022·12 cites·16 claims
- 0893US10041489B2Auxiliary pump and gas turbine engine oil circuit monitoring systemUNITED TECHNOLOGIES CORP·Filed 2015·Granted Aug 7, 2018·8 cites·16 claims
- 0990US10731559B2Lubrication system for gas turbine enginesUNITED TECHNOLOGIES CORP·Filed 2018·Granted Aug 4, 2020·3 cites·26 claims
- 1089US9874145B2Lubrication system for gas turbine enginesUNITED TECHNOLOGIES CORP·Filed 2015·Granted Jan 23, 2018·5 cites·13 claims
- 1189US8833086B2Lubrication arrangement for a gas turbine engine gear assemblyPARNIN FRANCIS·Filed 2012·Granted Sep 16, 2014·13 cites·18 claims
- 1289US8051869B2Gravity operated valveUNITED TECHNOLOGIES CORP·Filed 2009·Granted Nov 8, 2011·19 cites·20 claims
- 1387US8893469B2Oil bypass channel deaerator for a geared turbofan engineDIBENEDETTO ENZO·Filed 2011·Granted Nov 25, 2014·12 cites·17 claims
- 1486US10513938B2Intershaft compartment buffering arrangementUNITED TECHNOLOGIES CORP·Filed 2017·Granted Dec 24, 2019·4 cites·7 claims
- 1585US12378912B2Electronically controlled pressure relief system for an engineRAYTHEON TECH CORP·Filed 2023·Granted Aug 5, 2025·1 cites·19 claims
- 1685US7648143B2Tandem dual element intershaft carbon sealUNITED TECHNOLOGIES CORP·Filed 2005·Granted Jan 19, 2010·16 cites·15 claims
- 1784US10107142B2Fan drive gear system auxiliary pump monitoring systemUNITED TECHNOLOGIES CORP·Filed 2014·Granted Oct 23, 2018·8 cites·13 claims
- 1883US10711644B2Method and system to ensure full oil tubes after gas turbine engine shutdownUNITED TECHNOLOGIES CORP·Filed 2017·Granted Jul 14, 2020·2 cites·13 claims
- 1981US10066507B1Turbine engine lubrication system with wash flow filterUNITED TECHNOLOGIES CORP·Filed 2015·Granted Sep 4, 2018·2 cites·12 claims
- 2079US10961868B2Method and system to ensure full oil tubes after gas turbine engine shutdownRAYTHEON TECH CORP·Filed 2020·Granted Mar 30, 2021·1 cites·9 claims
- 2177US10072521B2FDGS auxiliary pump monitoring systemUNITED TECHNOLOGIES CORP·Filed 2014·Granted Sep 11, 2018·5 cites·18 claims
- 2276US9964039B2Auxiliary lubricant supply pump stage integral with main lubricant pump stageUNITED TECHNOLOGIES CORP·Filed 2014·Granted May 8, 2018·5 cites·17 claims
- 2375US10161314B2Vented buffer air supply for intershaft sealsUNITED TECHNOLOGIES CORP·Filed 2017·Granted Dec 25, 2018·2 cites·10 claims
- 2474US10934888B2Apparatus and method for providing fluid to a bearing damperUNITED TECHNOLOGIES CORP·Filed 2019·Granted Mar 2, 2021·1 cites·2 claims
- 2574US10711642B2Gas turbine engine lubrication system and apparatus with boost pump systemUNITED TECHNOLOGIES CORP·Filed 2017·Granted Jul 14, 2020·2 cites·13 claims
- 2673US9695709B2Electronic means for detecting buffered main shaft seal wear or failure in a turbine enginePARNIN FRANCIS·Filed 2012·Granted Jul 4, 2017·3 cites·20 claims
- 2771US8844257B2Bypass arrangement of a lubrication valve for a gas turbine engine gear assemblyPARNIN FRANCIS·Filed 2012·Granted Sep 30, 2014·4 cites·19 claims
- 2868US8424646B2Interruption tolerant lubrication systemPARNIN FRANCIS J·Filed 2006·Granted Apr 23, 2013·6 cites·15 claims
- 2968US2021207533A1Lubrication system for gas turbine enginesRAYTHEON TECH CORP·Filed 2020·Application pending·0 cites
- 3064US12049850B1Fan drive gear system gutter ejector systemRTX CORP·Filed 2023·Granted Jul 30, 2024·0 cites·19 claims
- 3163US2018347400A1Turbine engine lubrication system with wash flow filterUNITED TECHNOLOGIES CORP·Filed 2018·Application pending·0 cites
- 3262US10287916B2Internal tube oil coke prevention geometryUNITED TECHNLOLOGIES CORP·Filed 2016·Granted May 14, 2019·1 cites·12 claims
- 3362US10107197B2Lubrication system for gas turbine enginesUNITED TECHNOLOGIES CORP·Filed 2012·Granted Oct 23, 2018·2 cites·14 claims
- 3460US10830140B2Lubrication system for gas turbine enginesUNITED TECHNOLOGIES CORP·Filed 2018·Granted Nov 10, 2020·0 cites·22 claims
- 3558US12270336B1Fan drive gear system rotating oil baffleRTX CORP·Filed 2023·Granted Apr 8, 2025·0 cites·18 claims
- 3658US11193422B2Lubrication system for gas turbine enginesUNITED TECHNOLOGIES CORP·Filed 2018·Granted Dec 7, 2021·0 cites·14 claims
- 3756US11506079B2Fluid diffusion device for sealed bearing compartment drainback systemUNITED TECHNOLOGIES CORP·Filed 2019·Granted Nov 22, 2022·0 cites·15 claims
- 3851US2025075659A1Tower shaft driven planetary fan drive gear lubrication systemRTX CORP·Filed 2023·Application pending·0 cites
- 3948US9840966B2Auxiliaryy fluid flow system debris filterUNITED TECHNOLOGIES CORP·Filed 2014·Granted Dec 12, 2017·0 cites·14 claims
- 4045US2016017747A1Oil system debris monitor for a gas turbine engineUNITED TECHNOLOGIES CORP·Filed 2014·Application pending·0 cites
- 4144US10837318B2Buffer system for gas turbine engineUNITED TECHNOLOGIES CORP·Filed 2019·Granted Nov 17, 2020·0 cites·8 claims
- 4243US8961100B2Valve for controlling flow of a turbomachine fluidDIBENEDETTO ENZO·Filed 2011·Granted Feb 24, 2015·0 cites·18 claims
- 4338US11668247B2Geared gas turbine with oil scavenge ejector pump assistRAYTHEON TECH CORP·Filed 2021·Granted Jun 6, 2023·0 cites·6 claims
- 4438US2013319006A1Direct feed auxiliary oil system for geared turbofan enginePARNIN FRANCIS·Filed 2012·Application pending·0 cites
- 4537US2016245117A1In-line deaerator device for windmill-auxiliary oil system for fan drive gear systemUNITED TECHNOLOGIES CORP·Filed 2015·Application pending·0 cites
- 4631US8490752B2Accurate fluid volume measurement for thermally expanding fluidsJAMES DENMAN H·Filed 2006·Granted Jul 23, 2013·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →