Inventor · disambiguated record
Richard Freer
Also filed as: FREER RICHARD · FREER RICHARD J · FREER RICHARD JOHN
48 granted patents·20 pending applications·208 citations·filing 1993–2025
97Inventor score
Files withPRATT & WHITNEY CANADA59HAMILTON SUNDSTRAND CORP4NOVARTIS INT PHARM LTD2RHOMED INC2DISCOVERY GROUP LLC1
Top patents by PatentIndex Score
68 records- 0198US11827370B1Aircraft propulsion system with intermittent combustion engine and electric transmission system and method for operating the samePRATT & WHITNEY CANADA·Filed 2022·Granted Nov 28, 2023·11 cites·20 claims
- 0295US10998806B2Electric machine systemsPRATT & WHITNEY CANADA·Filed 2018·Granted May 4, 2021·6 cites·13 claims
- 0393US11190093B2Electric machine systems with gearsPRATT & WHITNEY CANADA·Filed 2018·Granted Nov 30, 2021·4 cites·9 claims
- 0492US11011966B2Electric machine systemsPRATT & WHITNEY CANADA·Filed 2018·Granted May 18, 2021·4 cites·18 claims
- 0591US11719166B1Aircraft propulsion system with intermittent combustion engine(s)PRATT & WHITNEY CANADA·Filed 2022·Granted Aug 8, 2023·2 cites·20 claims
- 0689US12139265B2Aircraft propulsion system with intermittent combustion engine and electric transmission system and method for operating the samePRATT & WHITNEY CANADA·Filed 2023·Granted Nov 12, 2024·1 cites·18 claims
- 0788US10865761B2Igniter for gas turbine enginePRATT & WHITNEY CANADA·Filed 2019·Granted Dec 15, 2020·2 cites·20 claims
- 0885US5759515APolyvalent peptide pharmaceutical applicationsRHOMED INC·Filed 1994·Granted Jun 2, 1998·59 cites·11 claims
- 0984US2025381884A1Nested control loop structure for hybrid propulsion systemPRATT & WHITNEY CANADA·Filed 2025·Application pending·0 cites
- 1079US6010468AFoot flexion deviceDISCOVERY GROUP LLC·Filed 1998·Granted Jan 4, 2000·93 cites·35 claims
- 1178US11863032B2Multi-rotor electric machine systemsPRATT & WHITNEY CANADA·Filed 2021·Granted Jan 2, 2024·0 cites·9 claims
- 1277US11990806B2Electric machine systemsPRATT & WHITNEY CANADA·Filed 2021·Granted May 21, 2024·0 cites·8 claims
- 1377US2025197018A1System and method for operating a hybrid aircraft power plantPRATT & WHITNEY CANADA·Filed 2025·Application pending·0 cites
- 1474US12467513B2Method and apparatus for actively damping vibrations in a hybrid-electric aircraft propulsion systemPRATT & WHITNEY CANADA·Filed 2023·Granted Nov 11, 2025·0 cites·18 claims
- 1573US12240625B2DC bus voltage controlPRATT & WHITNEY CANADA·Filed 2023·Granted Mar 4, 2025·0 cites·20 claims
- 1673US11909283B2Electric machine systems having magnetised bi-pole rotorsPRATT & WHITNEY CANADA·Filed 2021·Granted Feb 20, 2024·0 cites·12 claims
- 1773US11894742B2Electric machine systems comprising a stator common to the plurality of rotorsPRATT & WHITNEY CANADA·Filed 2021·Granted Feb 6, 2024·0 cites·10 claims
- 1873US11408351B2Igniter for gas turbine enginePRATT & WHITNEY CANADA·Filed 2019·Granted Aug 9, 2022·1 cites·19 claims
- 1972US12263953B2System and method for operating a hybrid aircraft power plantPRATT & WHITNEY CANADA·Filed 2023·Granted Apr 1, 2025·0 cites·11 claims
- 2072US11268447B2Igniter for gas turbine enginePRATT & WHITNEY CANADA·Filed 2019·Granted Mar 8, 2022·1 cites·13 claims
- 2171US11233470B2Synchronization of generator and electric motor in a hybrid electric aircraft propulsion systemPRATT & WHITNEY CANADA·Filed 2019·Granted Jan 25, 2022·2 cites·14 claims
- 2269US11692489B2Igniter for gas turbine enginePRATT & WHITNEY CANADA·Filed 2022·Granted Jul 4, 2023·0 cites·13 claims
- 2368US2020079515A1Hybrid electric aircraft propulsion systemPRATT & WHITNEY CANADA·Filed 2019·Application pending·0 cites
- 2467US12466288B2Nested control loop structure for hybrid propulsion systemPRATT & WHITNEY CANADA·Filed 2021·Granted Nov 11, 2025·0 cites·12 claims
- 2567US12391392B1Master-slave hybrid-electric powertrain control architecture with supervisory power management controlPRATT & WHITNEY CANADA·Filed 2024·Granted Aug 19, 2025·0 cites·20 claims
- 2667US11757386B2Hybrid electric propulsion system and method of operationPRATT & WHITNEY CANADA·Filed 2022·Granted Sep 12, 2023·0 cites·18 claims
- 2767US11614034B2Igniter for gas turbine enginePRATT & WHITNEY CANADA·Filed 2022·Granted Mar 28, 2023·0 cites·20 claims
- 2866US11649065B2DC bus voltage controlPRATT & WHITNEY CANADA·Filed 2021·Granted May 16, 2023·0 cites·18 claims
- 2965US12163468B1Aircraft powerplant with electric transmission(s)PRATT & WHITNEY CANADA·Filed 2023·Granted Dec 10, 2024·0 cites·19 claims
- 3065US2021388733A1Hybrid power plant for aircraftPRATT & WHITNEY CANADA·Filed 2021·Application pending·0 cites
- 3164US11936007B2Battery system with optical connectionsHAMILTON SUNDSTRAND CORP·Filed 2021·Granted Mar 19, 2024·0 cites·7 claims
- 3263US11415060B2Igniter for gas turbine enginePRATT & WHITNEY CANADA·Filed 2019·Granted Aug 16, 2022·0 cites·20 claims
- 3362US12365469B2Aircraft propulsion system with intermittent combustion engine(s)PRATT & WHITNEY CANADA·Filed 2022·Granted Jul 22, 2025·0 cites·19 claims
- 3462US2025293627A1Hybrid electric aircraft propulsion system and methodPRATT & WHITNEY CANADA·Filed 2025·Application pending·0 cites
- 3559US2022102802A1Battery system with thermal control loopHAMILTON SUNDSTRAND CORP·Filed 2021·Application pending·0 cites
- 3659US2023155209A1Battery module with heat pipesPRATT & WHITNEY CANADA·Filed 2021·Application pending·0 cites
- 3758US12270332B1Hybrid-electric aircraft propulsion system control system and methodPRATT & WHITNEY CANADA·Filed 2023·Granted Apr 8, 2025·0 cites·20 claims
- 3857US11025181B2Hybrid electric propulsion system and method of operationPRATT & WHITNEY CANADA·Filed 2019·Granted Jun 1, 2021·0 cites·15 claims
- 3957US10826415B2Operation of a hybrid electric aircraft propulsion systemPRATT & WHITNEY CANADA·Filed 2019·Granted Nov 3, 2020·0 cites·18 claims
- 4055US12296941B2System and method for controlling a propulsor for a hybrid-electric aircraft propulsion systemPRATT & WHITNEY CANADA·Filed 2023·Granted May 13, 2025·0 cites·15 claims
- 4155US12031513B2Method and system for glow plug operationPRATT & WHITNEY CANADA·Filed 2021·Granted Jul 9, 2024·0 cites·18 claims
- 4255US11286861B2Igniter for gas turbine enginePRATT & WHITNEY CANADA·Filed 2019·Granted Mar 29, 2022·0 cites·17 claims
- 4355US11283376B2Hybrid electric propulsion system and method of operationPRATT & WHITNEY CANADA·Filed 2019·Granted Mar 22, 2022·0 cites·16 claims
- 4455US2022102763A1Interface with battery management system and mechanical switch deviceHAMILTON SUNDSTRAND CORP·Filed 2021·Application pending·0 cites
- 4555US2022102784A1Battery cell system with field effect transistorsHAMILTON SUNDSTRAND CORP·Filed 2021·Application pending·0 cites
- 4654US11391212B2Igniter for gas turbine enginePRATT & WHITNEY CANADA·Filed 2019·Granted Jul 19, 2022·0 cites·18 claims
- 4754US5700444AChemotactic peptide pharmaceutical applicationsRHOMED INC·Filed 1993·Granted Dec 23, 1997·14 cites·13 claims
- 4853US12031473B2Aircraft propulsion system with intermittent combustion engine, hydraulic motor, and cooling systemPRATT & WHITNEY CANADA·Filed 2022·Granted Jul 9, 2024·0 cites·18 claims
- 4953US2024333020A1Aircraft battery charging system and methodPRATT & WHITNEY CANADA·Filed 2024·Application pending·0 cites
- 5053US2024333007A1System and method for controlling an aircraft battery assemblyPRATT & WHITNEY CANADA·Filed 2024·Application pending·0 cites
Showing the top 50 of 68 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →