Inventor · disambiguated record
Robert H. Perkinson
Also filed as: PERKINSON ROBERT · PERKINSON ROBERT H
40 granted patents·5 pending applications·584 citations·filing 1982–2021
98Inventor score
Files withPERKINSON ROBERT H18HAMILTON SUNDSTRAND CORP10UNITED TECHNOLOGIES CORP8PRATT & WHITNEY CANADA3HAMILTON SUNDSTRAND2
Top patents by PatentIndex Score
45 records- 0196US6811376B2Actuation system for a controllable pitch propellerHAMILTON SUNDSTRAND·Filed 2002·Granted Nov 2, 2004·74 cites·29 claims
- 0292US5897293ACounterweighted propeller control systemUNITED TECHNOLOGIES CORP·Filed 1996·Granted Apr 27, 1999·99 cites·11 claims
- 0391US6900056B2Chemically defined medium for cultured mammalian cellsCENTOCOR INC·Filed 2002·Granted May 31, 2005·70 cites·3 claims
- 0488US9973058B2Propeller in-hub power generation and controlHAMILTON SUNDSTRAND CORP·Filed 2014·Granted May 15, 2018·12 cites·13 claims
- 0588US8439640B2Propeller blade pitch control systemAREL DAVID V·Filed 2009·Granted May 14, 2013·28 cites·23 claims
- 0688US8162611B2Controllable pitch propeller with electrical power generationPERKINSON ROBERT H·Filed 2009·Granted Apr 24, 2012·21 cites·19 claims
- 0787US8167553B2Electrical system for driving a propeller pitch change mechanismPERKINSON ROBERT H·Filed 2009·Granted May 1, 2012·21 cites·20 claims
- 0884US7341426B2Gas turbine engine blade tip clearance apparatus and methodUNITED TECHNOLOGIES CORP·Filed 2004·Granted Mar 11, 2008·31 cites·19 claims
- 0983US8790087B2Interlocking blade sheathPERKINSON ROBERT H·Filed 2011·Granted Jul 29, 2014·5 cites·17 claims
- 1082US10094293B2In flight restart system and method for free turbine enginePRATT & WHITNEY CANADA·Filed 2014·Granted Oct 9, 2018·6 cites·7 claims
- 1182US8740565B2Modular counter rotating propeller systemPERKINSON ROBERT H·Filed 2011·Granted Jun 3, 2014·9 cites·17 claims
- 1281US9051044B2Counter-rotating open-rotor (CROR)TALASCO ERIC J·Filed 2011·Granted Jun 9, 2015·10 cites·21 claims
- 1381US6981844B2Cyclic actuation system for a controllable pitch propeller and a method of providing aircraft control therewithHAMILTON SUNDSTRAND·Filed 2003·Granted Jan 3, 2006·35 cites·27 claims
- 1480US8167501B2Separator for bearing assemblies with cyclic loadsPERKINSON ROBERT H·Filed 2009·Granted May 1, 2012·9 cites·13 claims
- 1577US8757972B2De-icing system for modular counter rotating propellerPERKINSON ROBERT H·Filed 2011·Granted Jun 24, 2014·7 cites·18 claims
- 1677US8529205B2Passive cyclic pitch controlPERKINSON ROBERT H·Filed 2009·Granted Sep 10, 2013·12 cites·17 claims
- 1775US9718536B2Counter-rotating open-rotor (CROR)DANIELSON DAVID R·Filed 2011·Granted Aug 1, 2017·6 cites·19 claims
- 1874US8545178B2Controlled propeller pitch lock actuation systemPERKINSON ROBERT H·Filed 2006·Granted Oct 1, 2013·12 cites·17 claims
- 1970US8172530B2Pitch change actuation system for a counter-rotating propellerPERKINSON ROBERT H·Filed 2009·Granted May 8, 2012·9 cites·20 claims
- 2070US4760662AHybrid fuel metering systemUNITED TECHNOLOGIES CORP·Filed 1987·Granted Aug 2, 1988·25 cites·8 claims
- 2169US11530647B2In flight restart system and method for free turbine enginePRATT & WHITNEY CANADA·Filed 2021·Granted Dec 20, 2022·0 cites·10 claims
- 2268US8277182B2Remote pitch controller for a variable pitch propellerPERKINSON ROBERT H·Filed 2009·Granted Oct 2, 2012·11 cites·23 claims
- 2367US6511292B2Backup governing system for a variable pitch propellerHAMILTON SUNDSTRAND CORP·Filed 2001·Granted Jan 28, 2003·20 cites·20 claims
- 2464US9604729B2Aircraft control system and methodHAMILTON SUNDSTRAND CORP·Filed 2013·Granted Mar 28, 2017·3 cites·1 claims
- 2563US10407163B2Aircraft control system and methodHAMILTON SUNDSTRAND CORP·Filed 2017·Granted Sep 10, 2019·1 cites·6 claims
- 2663US8784055B2Propeller pitchlock un-locking devicePERKINSON ROBERT H·Filed 2010·Granted Jul 22, 2014·3 cites·11 claims
- 2763US4805658AVariable pressure regulating valveUNITED TECHNOLOGIES CORP·Filed 1987·Granted Feb 21, 1989·22 cites·7 claims
- 2862US11131245B2In flight restart system and method for free turbine enginePRATT & WHITNEY CANADA·Filed 2018·Granted Sep 28, 2021·0 cites·10 claims
- 2960US9970300B2Brush design for propeller deicing systemHAMILTON SUNDSTRAND CORP·Filed 2013·Granted May 15, 2018·2 cites·15 claims
- 3060US8770934B2Teeter mechanism for a multiple-bladed wind turbinePERKINSON ROBERT H·Filed 2009·Granted Jul 8, 2014·4 cites·22 claims
- 3159US9381997B2Propeller pitchlock system with a rotating interfaceHAMILTON SUNDSTRAND CORP·Filed 2013·Granted Jul 5, 2016·2 cites·16 claims
- 3255US8182222B2Thermal protection of rotor bladesPERKINSON ROBERT H·Filed 2009·Granted May 22, 2012·2 cites·20 claims
- 3352US9695802B2Wind turbine load mitigationUNITED TECHNOLOGIES CORP·Filed 2013·Granted Jul 4, 2017·0 cites·17 claims
- 3452US9028222B2Variable output pumpPERKINSON ROBERT H·Filed 2011·Granted May 12, 2015·0 cites·16 claims
- 3552US8496436B2Torque compensation for propeller pitch change mechanismPERKINSON ROBERT H·Filed 2010·Granted Jul 30, 2013·1 cites·11 claims
- 3651US2014205452A1Wind turbine bladeUNITED TECHNOLOGIES CORP·Filed 2014·Application pending·0 cites
- 3750US8894418B2Retractable contact assemblyPERKINSON ROBERT H·Filed 2012·Granted Nov 25, 2014·1 cites·19 claims
- 3848US8535007B2Hydraulic actuator locking devicePERKINSON ROBERT H·Filed 2010·Granted Sep 17, 2013·0 cites·16 claims
- 3948US2016023773A1Hybrid electric pulsed-power propulsion system for aircraftHAMILTON SUNDSTRAND CORP·Filed 2014·Application pending·0 cites
- 4046US4501157AVortex shedding flow measuring transducerUNITED TECHNOLOGIES CORP·Filed 1982·Granted Feb 26, 1985·10 cites·2 claims
- 4146US2012183399A1Method and apparatus for balancing wind turbinesPERKINSON ROBERT H·Filed 2011·Application pending·0 cites
- 4243US9512728B2Simplified propeller balancing system and methodHAMILTON SUNDSTRAND CORP·Filed 2013·Granted Dec 6, 2016·0 cites·16 claims
- 4343US2016257416A1Propulsion systemHAMILTON SUNDSTRAND CORP·Filed 2014·Application pending·0 cites
- 4441US2015225053A1Cyclic pitch actuation system for counter-rotating propellersHAMILTON SUNDSTRAND CORP·Filed 2014·Application pending·0 cites
- 4526US4898324AMetering valve temperature compensationUNITED TECHNOLOGIES CORP·Filed 1989·Granted Feb 6, 1990·1 cites·8 claims
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