Inventor · disambiguated record

Chengwu Duan

Also filed as: DUAN CHENGWU

55 granted patents·36 pending applications·103 citations·filing 2014–2024

97Inventor score

Technology areasH02K F16H H02J H01M B60K

Files withGM GLOBAL TECH OPERATIONS LLC91

Top patents by PatentIndex Score

91 records

0197US11603925B1Hydraulically actuated clutch system and control logic for torque converter assembliesGM GLOBAL TECH OPERATIONS LLC·Filed 2021·Granted Mar 14, 2023·5 cites·22 claims
0295US10086833B1Automobile door open hazard warning system and methodsGM GLOBAL TECH OPERATIONS LLC·Filed 2017·Granted Oct 2, 2018·36 cites·18 claims
0394US11804744B2Axial flux electric machine including insulated hybrid stator core with soft magnetic composite portions and laminated layersGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Oct 31, 2023·2 cites·17 claims
0493US9797321B2Internal combustion engine with elevated compression ratio and multi-stage boosting including a variable-speed superchargerGM GLOBAL TECH OPERATIONS LLC·Filed 2016·Granted Oct 24, 2017·4 cites·18 claims
0590US12301060B2Rotors for electric motorsGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted May 13, 2025·1 cites·20 claims
0690US11025116B2Centrifugal fluid-cooled axial flux motorGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted Jun 1, 2021·4 cites·15 claims
0788US12036886B2Controlling a DC-DC converter for DC chargingGM GLOBAL TECH OPERATIONS LLC·Filed 2021·Granted Jul 16, 2024·2 cites·20 claims
0888US10267391B2Continuously variable transmission with wedge actuation mechanismGM GLOBAL TECH OPERATIONS LLC·Filed 2016·Granted Apr 23, 2019·4 cites·20 claims
0987US11646611B2Locking mechanism for segmented stator coreGM GLOBAL TECH OPERATIONS LLC·Filed 2021·Granted May 9, 2023·1 cites·20 claims
1087US11594929B2Axial flux motor with distributed windingGM GLOBAL TECH OPERATIONS LLC·Filed 2020·Granted Feb 28, 2023·3 cites·17 claims
1187US10458490B2Cycle lock system and methodGM GLOBAL TECH OPERATIONS LLC·Filed 2017·Granted Oct 29, 2019·3 cites·20 claims
1287US10438422B1Methods and systems for controlling use of shared machinesGM GLOBAL TECH OPERATIONS LLC·Filed 2018·Granted Oct 8, 2019·5 cites·14 claims
1386US10974593B2Powertrain for an electric vehicleGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted Apr 13, 2021·5 cites·16 claims
1486US10941840B2Continuously variable transmission with wedge actuation mechanismGM GLOBAL TECH OPERATIONS LLC·Filed 2017·Granted Mar 9, 2021·3 cites·19 claims
1585US11621621B2Magnets, pole shoes, and slot openings of axial flux motorGM GLOBAL TECH OPERATIONS LLC·Filed 2020·Granted Apr 4, 2023·1 cites·19 claims
1685US11569713B2Axial flux motor including system for circulating coolant through air gap between stator and rotorGM GLOBAL TECH OPERATIONS LLC·Filed 2020·Granted Jan 31, 2023·1 cites·19 claims
1783US10576837B2Electrical drive unitGM GLOBAL TECH OPERATIONS LLC·Filed 2018·Granted Mar 3, 2020·3 cites·20 claims
1882US11381123B2Hybrid stator core component design for axial flux motorGM GLOBAL TECH OPERATIONS LLC·Filed 2020·Granted Jul 5, 2022·1 cites·20 claims
1978US10879754B2Axial flux motor having an insulated rotorGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted Dec 29, 2020·1 cites·20 claims
2077US12512532B2Battery pack having an integrated cooling systemGM GLOBAL TECH OPERATIONS LLC·Filed 2023·Granted Dec 30, 2025·0 cites·20 claims
2177US11204084B2Continuously variable transmission including a layshaft gearsetGM GLOBAL TECH OPERATIONS LLC·Filed 2016·Granted Dec 21, 2021·2 cites·8 claims
2277US10125866B2Transmission for a powertrain systemGM GLOBAL TECH OPERATIONS LLC·Filed 2016·Granted Nov 13, 2018·2 cites·18 claims
2374US10651740B1Buck-boost converter for an electric driveGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted May 12, 2020·2 cites·20 claims
2473US10473195B2Continuously-variable transmissionGM GLOBAL TECH OPERATIONS LLC·Filed 2017·Granted Nov 12, 2019·1 cites·20 claims
2573US10132391B2Continuously variable transmissionGM GLOBAL TECH OPERATIONS LLC·Filed 2014·Granted Nov 20, 2018·3 cites·16 claims
2672US12438426B2Adjustable air gap axial flux motorGM GLOBAL TECH OPERATIONS LLC·Filed 2023·Granted Oct 7, 2025·0 cites·19 claims
2772US11305675B2Disturbance cancellation and generation seatGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted Apr 19, 2022·2 cites·19 claims
2872US2025337036A1Battery pack corner cooling and heatingGM GLOBAL TECH OPERATIONS LLC·Filed 2024·Application pending·0 cites
2971US12316203B2Axial flux motor assemblies with integrated power electronics and double-sided coolingGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted May 27, 2025·0 cites·20 claims
3071US11876406B2Direct contact cooling of axial flux motor statorGM GLOBAL TECH OPERATIONS LLC·Filed 2021·Granted Jan 16, 2024·0 cites·20 claims
3171US10473200B2Continuously variable transmission with wedge actuation mechanismGM GLOBAL TECH OPERATIONS LLC·Filed 2017·Granted Nov 12, 2019·1 cites·9 claims
3270US10473213B2Method of controlling clamping of wedge-actuated CVT and powertrain with wedge-actuated CVTGM GLOBAL TECH OPERATIONS LLC·Filed 2017·Granted Nov 12, 2019·1 cites·19 claims
3370US2025096357A1Multi-function beam with integrated structural, cooling, and transverse elastic compliance functions for use with electric vehicle battery packsGM GLOBAL TECH OPERATIONS LLC·Filed 2023·Application pending·0 cites
3470US2025233233A1Superbeam design for cylindrical battery cell assemblyGM GLOBAL TECH OPERATIONS LLC·Filed 2024·Application pending·0 cites
3569US2025340097A1Mitigating airlock in cooling channels for large area cooling systems for batteriesGM GLOBAL TECH OPERATIONS LLC·Filed 2024·Application pending·0 cites
3668US12397680B2Active and passive heat flux control systems for two-phase immersive cooling for high power density electric vehicle componentsGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Aug 26, 2025·0 cites·20 claims
3768US12266997B2Thermal bridge for an electric machineGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Apr 1, 2025·0 cites·20 claims
3868US11205930B2Axial flux motor assemblies with variable thickness rotors and rotors having interiorly disposed magnetsGM GLOBAL TECH OPERATIONS LLC·Filed 2020·Granted Dec 21, 2021·0 cites·19 claims
3967US11715999B2Method of making a laminated stator of an axial flux motorGM GLOBAL TECH OPERATIONS LLC·Filed 2020·Granted Aug 1, 2023·0 cites·17 claims
4067US10626970B2Multi-mode transmission including a continuously variable transmissionGM GLOBAL TECH OPERATIONS LLC·Filed 2016·Granted Apr 21, 2020·1 cites·18 claims
4167US10295056B2Mode transition control in a CVT with fixed gear functionalityGM GLOBAL TECH OPERATIONS LLC·Filed 2014·Granted May 21, 2019·2 cites·16 claims
4266US11971455B2State of charge and state of health assessment of a mixed chemistry batteryGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Apr 30, 2024·0 cites·20 claims
4366US11254223B2Operating mode optimization for electric propulsion system with downsized DC-DC converterGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted Feb 22, 2022·1 cites·20 claims
4466US2024291061A1Adjustable heating for a mixed chemistry batteryGM GLOBAL TECH OPERATIONS LLC·Filed 2023·Application pending·0 cites
4565US12294280B2Integrated axial flux motor assemblies including planetary gearsetsGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted May 6, 2025·0 cites·10 claims
4665US11936239B2Bi-material permanent magnets for electric machinesGM GLOBAL TECH OPERATIONS LLC·Filed 2020·Granted Mar 19, 2024·0 cites·20 claims
4765US2024253442A1Battery pack having an integrated cooling systemGM GLOBAL TECH OPERATIONS LLC·Filed 2023·Application pending·0 cites
4864US2025253730A1Electric machine with cooling channel loops for stator magnetic polesGM GLOBAL TECH OPERATIONS LLC·Filed 2024·Application pending·0 cites
4964US2024291085A1Layout for battery pack with mixed chemistry cellsGM GLOBAL TECH OPERATIONS LLC·Filed 2023·Application pending·0 cites
5062US11689073B2Rotor core designGM GLOBAL TECH OPERATIONS LLC·Filed 2021·Granted Jun 27, 2023·0 cites·20 claims

Showing the top 50 of 91 patent records by PatentIndex Score.

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →