Inventor
LAHR DEREK F
US66 patents
Patents
50 patentsUS10763772B1Sep 1, 2020
Excitation of cycloidal electric machine
GM GLOBAL TECH OPERATIONS LLC24 citations94
US10259448B2Apr 16, 2019
Hybrid vehicle propulsion systems and methods
GM GLOBAL TECH OPERATIONS LLC20 citations93
US10017044B2Jul 10, 2018
Hybrid powertrain system
GM GLOBAL TECH OPERATIONS LLC10 citations84
US10189470B2Jan 29, 2019
Hybrid vehicle propulsion systems and methods
GM GLOBAL TECH OPERATIONS LLC12 citations83
US10155547B1Dec 18, 2018
Vascular structures and methods for heat management
GM GLOBAL TECH OPERATIONS LLC9 citations83
US10864813B2Dec 15, 2020
Back-to-back selectable one-way clutches for engine disconnect devices of motor vehicle powertrains
GM GLOBAL TECH OPERATIONS LLC8 citations82
US12088146B2Sep 10, 2024
Rotor for an electric machine, electric machine for a vehicle, and vehicle
GM GLOBAL TECH OPERATIONS LLC2 citations73
US11387712B2Jul 12, 2022
Method to reduce oil shear drag in airgap
GM GLOBAL TECH OPERATIONS LLC2 citations73
US11133724B2Sep 28, 2021
Rotor with compressive structural elements
GM GLOBAL TECH OPERATIONS LLC4 citations73
US11009124B2May 18, 2021
Hydrodynamic torque converters with integrated engine disconnect devices of motor vehicle powertrains
GM GLOBAL TECH OPERATIONS LLC6 citations73
US10941840B2Mar 9, 2021
Continuously variable transmission with wedge actuation mechanism
GM GLOBAL TECH OPERATIONS LLC3 citations73
US10876582B2Dec 29, 2020
Selectable one-way clutches with notch plate inserts for engine disconnect devices of motor vehicle powertrains
GM GLOBAL TECH OPERATIONS LLC2 citations73
US10851882B2Dec 1, 2020
Damper configurations for a hybrid vehicle powertrain having a motor coupled between an engine and a transmission with a one-way clutch coupling the engine to the transmission
GM GLOBAL TECH OPERATIONS LLC2 citations73
US10804759B1Oct 13, 2020
Cycloidal electric machine with minimized airgap
GM GLOBAL TECH OPERATIONS LLC3 citations73
US10760624B1Sep 1, 2020
Wedge-type selectable one-way clutches for engine disconnect devices of motor vehicle powertrains
GM GLOBAL TECH OPERATIONS LLC5 citations73
US10513251B2Dec 24, 2019
Multi-mode engine-disconnect clutch assemblies and control logic for hybrid electric vehicles
GM GLOBAL TECH OPERATIONS LLC5 citations73
US10464410B2Nov 5, 2019
Vehicle propulsion system torque transfer vibration attenuation mechanisms
GM GLOBAL TECH OPERATIONS LLC2 citations73
US10358123B2Jul 23, 2019
Multi-mode engine-disconnect clutch assemblies and control logic for hybrid electric vehicles
GM GLOBAL TECH OPERATIONS LLC5 citations73
US10337597B2Jul 2, 2019
Engine disconnects with mechanical diodes for vehicle powertrains
GM GLOBAL TECH OPERATIONS LLC6 citations73
US10323696B2Jun 18, 2019
Dynamic latching mechanisms for selectable clutches of motor vehicle powertrains
GM GLOBAL TECH OPERATIONS LLC2 citations73
US10267391B2Apr 23, 2019
Continuously variable transmission with wedge actuation mechanism
GM GLOBAL TECH OPERATIONS LLC4 citations73
US10260613B2Apr 16, 2019
Damper assemblies for engine disconnect clutches of motor vehicle powertrains
GM GLOBAL TECH OPERATIONS LLC3 citations73
US10166975B2Jan 1, 2019
Transmission with torque converter disconnect clutch and engine braking friction clutch
GM GLOBAL TECH OPERATIONS LLC4 citations73
US11171545B2Nov 9, 2021
Reinforced stator housing for an electric motor
GM GLOBAL TECH OPERATIONS LLC2 citations72
US10556482B2Feb 11, 2020
Vascular structures and methods for thermal control
GM GLOBAL TECH OPERATIONS LLC3 citations72
US11545860B2Jan 3, 2023
Inserts for motor rotor core
GM GLOBAL TECH OPERATIONS LLC2 citations68
US10913344B2Feb 9, 2021
Drivetrain for a hybrid propulsion system
GM GLOBAL TECH OPERATIONS LLC2 citations67
US10850602B2Dec 1, 2020
Hybrid powertrain engine disconnect device
GM GLOBAL TECH OPERATIONS LLC1 citations63
US10473200B2Nov 12, 2019
Continuously variable transmission with wedge actuation mechanism
GM GLOBAL TECH OPERATIONS LLC1 citations63
US10473197B2Nov 12, 2019
Vehicle propulsion system torque transfer vibration attenuation mechanism
GM GLOBAL TECH OPERATIONS LLC1 citations63
US12199253B2Jan 14, 2025
Laminated thermal barrier for anisotropic heat transfer
GM GLOBAL TECH OPERATIONS LLC0 citations62
US11708869B2Jul 25, 2023
Selectable one-way clutches with notch plate inserts for engine disconnect devices of motor vehicle powertrains
GM GLOBAL TECH OPERATIONS LLC0 citations62
US11476733B2Oct 18, 2022
Electric machine with forced convection-based rotor cooling of rotor magnets
GM GLOBAL TECH OPERATIONS LLC1 citations62
US11451123B2Sep 20, 2022
Expandable rotor
GM GLOBAL TECH OPERATIONS LLC0 citations62
US11121592B2Sep 14, 2021
Electric machine core with arcuate grain orientation
GM GLOBAL TECH OPERATIONS LLC0 citations62
US11088607B2Aug 10, 2021
Axial flux machine with nutating rotor
GM GLOBAL TECH OPERATIONS LLC0 citations62
US10955025B2Mar 23, 2021
Vehicle powertrain variable vibration absorber assembly
GM GLOBAL TECH OPERATIONS LLC0 citations62
US10923987B2Feb 16, 2021
Electrical system with cycloidal electric machine
GM GLOBAL TECH OPERATIONS LLC0 citations62
US10804757B1Oct 13, 2020
Cycloidal reluctance motor with rotor electromagnets
GM GLOBAL TECH OPERATIONS LLC1 citations62
US10471820B2Nov 12, 2019
Hybrid drivetrain
GM GLOBAL TECH OPERATIONS LLC1 citations62
US10267376B2Apr 23, 2019
Powertrain torque transfer damping mechanism
GM GLOBAL TECH OPERATIONS LLC1 citations62
US12512532B2Dec 30, 2025
Battery pack having an integrated cooling system
GM GLOBAL TECH OPERATIONS LLC0 citations61
US11722043B2Aug 8, 2023
Synchronous machine having hybrid rotor excitation
GM GLOBAL TECH OPERATIONS LLC0 citations61
US10710449B2Jul 14, 2020
Hybrid drivetrain
GM GLOBAL TECH OPERATIONS LLC1 citations61
US11646620B2May 9, 2023
Preloading magnets in a rotor core
GM GLOBAL TECH OPERATIONS LLC0 citations52
US11220172B2Jan 11, 2022
Motor vehicle hybrid powertrain
GM GLOBAL TECH OPERATIONS LLC0 citations52
US10626951B2Apr 21, 2020
Isolator assembly and a vehicle including the isolator assembly
GM GLOBAL TECH OPERATIONS LLC0 citations52
US10563744B2Feb 18, 2020
Damper assemblies for engine disconnect clutches of motor vehicle powertrains
GM GLOBAL TECH OPERATIONS LLC0 citations52
US10514096B2Dec 24, 2019
Continuously variable transmission ratio measuring device
GM GLOBAL TECH OPERATIONS LLC0 citations52
US10508696B1Dec 17, 2019
Selectable one-way clutch with damper springs
GM GLOBAL TECH OPERATIONS LLC0 citations52
Showing the top 50 of 66 patents by PatentIndex Score.