Inventor · disambiguated record
Charles Hubert Speller
Also filed as: SPELLER CHARLES · SPELLER CHARLES H · SPELLER CHARLES HUBERT · SPELLER JR CHARLES HUBERT
30 granted patents·4 pending applications·47 citations·filing 2011–2024
94Inventor score
Top patents by PatentIndex Score
34 records- 0194US11731779B2Drivetrain for an aircraft including gearbox with coaxial input and output shaftsTEXTRON INNOVATIONS INC·Filed 2020·Granted Aug 22, 2023·5 cites·20 claims
- 0289US11852232B1Persistent lubrication systems for aircraft gearboxesTEXTRON INNOVATIONS INC·Filed 2022·Granted Dec 26, 2023·2 cites·20 claims
- 0387US10843798B2Mast lockout systems for tiltrotor aircraftTEXTRON INNOVATIONS INC·Filed 2018·Granted Nov 24, 2020·6 cites·20 claims
- 0486US10875640B2Mast lockout systems for tiltrotor aircraftTEXTRON INNOVATIONS INC·Filed 2018·Granted Dec 29, 2020·5 cites·20 claims
- 0582US11391362B2Oil pump receiving bore lipTEXTRON INNOVATIONS INC·Filed 2020·Granted Jul 19, 2022·2 cites·20 claims
- 0682US11008113B2Clutch with synchronizer and locking mechanismBELL HELICOPTER TEXTRON INC·Filed 2018·Granted May 18, 2021·3 cites·9 claims
- 0781US10960972B2Rotorcraft masts having a nonintegral racewayTEXTRON INNOVATIONS INC·Filed 2018·Granted Mar 30, 2021·3 cites·20 claims
- 0879US11975826B2Electric tiltrotor aircraft with fixed motorsBELL TEXTRON INC·Filed 2021·Granted May 7, 2024·1 cites·14 claims
- 0979US10343787B2Rotor systems and methodsBELL HELICOPTER TEXTRON INC·Filed 2017·Granted Jul 9, 2019·4 cites·20 claims
- 1078US11420760B2Sealed coaxial input and output shaftsTEXTRON INNOVATIONS INC·Filed 2020·Granted Aug 23, 2022·1 cites·20 claims
- 1176US11300199B2Non-pressurized accessory gearboxBELL HELICOPTER TEXTRON INC·Filed 2017·Granted Apr 12, 2022·3 cites·27 claims
- 1275US12473083B2Electric tiltrotor aircraft with tilting coaxial motors and gearboxTEXTRON INNOVATIONS INC·Filed 2023·Granted Nov 18, 2025·0 cites·16 claims
- 1375US12434823B2Electric tiltrotor aircraft with fixed motorsTEXTRON INNOVATIONS INC·Filed 2024·Granted Oct 7, 2025·0 cites·18 claims
- 1473US10745124B2Rotor systems and methodsBELL HELICOPTER TEXTRON INC·Filed 2019·Granted Aug 18, 2020·2 cites·20 claims
- 1573US10385959B2Flange-mounted ring gear for improved heat managementBELL HELICOPTER TEXTRON INC·Filed 2017·Granted Aug 20, 2019·2 cites·26 claims
- 1672US8961138B2Preventing rotation of a fixed ring of a swashplateWIINIKKA MARK·Filed 2011·Granted Feb 24, 2015·6 cites·20 claims
- 1768US11459088B2Rotor assemblyBELL TEXTRON INC·Filed 2019·Granted Oct 4, 2022·1 cites·20 claims
- 1865US11940042B2Gearbox self contained breathing systemTEXTRON INNOVATIONS INC·Filed 2022·Granted Mar 26, 2024·0 cites·16 claims
- 1965US11814163B2Electric tiltrotor aircraft with tilting coaxial motors and gearboxBELL TEXTRON INC·Filed 2021·Granted Nov 14, 2023·0 cites·10 claims
- 2065US11358731B2Clutch with synchronizer and locking mechanismTEXTRON INNOVATIONS INC·Filed 2021·Granted Jun 14, 2022·0 cites·11 claims
- 2162US12208886B2Axially biased nonintegral raceways for rotorcraft mastsTEXTRON INNOVATIONS INC·Filed 2022·Granted Jan 28, 2025·0 cites·20 claims
- 2262US11338915B2Rotor systems and methodsBELL TEXTRON INC·Filed 2020·Granted May 24, 2022·0 cites·20 claims
- 2361US11181187B2Planetary gear carrier with hardened postsBELL HELICOPTER TEXTRON INC·Filed 2018·Granted Nov 23, 2021·0 cites·22 claims
- 2461US10611496B2Power allocation systems for aircraftTEXTRON INNOVATIONS INC·Filed 2018·Granted Apr 7, 2020·1 cites·20 claims
- 2560US12372150B2Press fit bearing shoulder on gear shaftsTEXTRON INNOVATIONS INC·Filed 2022·Granted Jul 29, 2025·0 cites·18 claims
- 2660US11708156B2Friction welded raceways for use in rotorcraft propulsion assembliesTEXTRON INNOVATIONS INC·Filed 2021·Granted Jul 25, 2023·0 cites·20 claims
- 2758US11772804B2Electric tiltrotor aircraft with offset tilting motorsBELL TEXTRON INC·Filed 2021·Granted Oct 3, 2023·0 cites·20 claims
- 2852US2022290723A1Drive splines with friction-reducing coatingTEXTRON INNOVATIONS INC·Filed 2022·Application pending·0 cites
- 2950US11077936B2Fluid delivery deviceBELL HELICOPTER TEXTRON INC·Filed 2018·Granted Aug 3, 2021·0 cites·20 claims
- 3048US12092107B2Dual input pump assemblyBELL TEXTRON INC·Filed 2021·Granted Sep 17, 2024·0 cites·12 claims
- 3146US11643197B2Reduced height swashplate assemblyBELL HELICOPTER TEXTRON INC·Filed 2018·Granted May 9, 2023·0 cites·26 claims
- 3244US2022219816A1Compact integrated mast and carrierBELL TEXTRON INC·Filed 2021·Application pending·0 cites
- 3340US2018087639A1High Speed Engine Reduction GearboxesBELL HELICOPTER TEXTRON INC·Filed 2017·Application pending·0 cites
- 3438US2018086444A1Aircraft Drive SystemBELL HELICOPTER TEXTRON INC·Filed 2017·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →