Assignee
TM4 INC
CA37 patents
Top patents by PatentIndex Score
US6819016B2Nov 16, 2004
Liquid cooling arrangement for electric machines
TM4 INC49 citations94
US7614910B2Nov 10, 2009
Electrical connector
TM4 INC75 citations92
US6992411B2Jan 31, 2006
Liquid cooling arrangement for electric machines
TM4 INC22 citations91
US7049725B2May 23, 2006
Dynamoelectric machine stator and method for mounting prewound coils thereunto
TM4 INC23 citations89
US6960851B2Nov 1, 2005
Cooling device including a biasing element
TM4 INC22 citations89
US8378534B2Feb 19, 2013
Liquid cooling arrangement for electric machines
TM4 INC24 citations88
US7513349B2Apr 7, 2009
Multi-position clutch
TM4 INC8 citations81
US7474021B2Jan 6, 2009
Cooling assembly for electric machine
TM4 INC13 citations81
US7898136B2Mar 1, 2011
Permanent magnet rotor assembly
TM4 INC16 citations79
US7471023B2Dec 30, 2008
Electric machine provided with an internal stator
TM4 INC11 citations77
US10270315B2Apr 23, 2019
Cast cooling arrangement for electric machines
TM4 INC7 citations76
US7402924B2Jul 22, 2008
Cooling assembly for electric machine
TM4 INC9 citations76
US9774244B2Sep 26, 2017
Power converter configured for limiting switching overvoltage
TM4 INC5 citations72
US10622881B2Apr 14, 2020
Circuits for softening switching phases in voltage converters
TM4 INC2 citations71
US10205405B2Feb 12, 2019
Turn-off overvoltage limiting for IGBT
TM4 INC3 citations71
US9882465B2Jan 30, 2018
Commutation cell, power converter and compensation circuit having dynamically controlled voltage gains
TM4 INC3 citations71
US9812987B2Nov 7, 2017
Topology for controlled power switch module
TM4 INC2 citations71
US9768693B2Sep 19, 2017
Compensation circuit, commutation cell and power converter controlling turn-on and turn-off of a power electronic switch
TM4 INC2 citations71
US9608543B2Mar 28, 2017
Turn-off overvoltage limiting for IGBT
TM4 INC2 citations71
US7900760B2Mar 8, 2011
Multi-position clutch
TM4 INC6 citations71
US10468927B2Nov 5, 2019
Inserted permanent magnet rotor for an external rotor electric machine
TM4 INC2 citations66
US9748821B2Aug 29, 2017
Modular cooling arrangement for electric machine
TM4 INC2 citations66
US10587257B2Mar 10, 2020
Commutation cell and compensation circuit therefor
TM4 INC1 citations60
US10277112B2Apr 30, 2019
Physical topology for a power converter
TM4 INC1 citations60
US7641583B2Jan 5, 2010
Hybrid drive train for vehicle
TM4 INC5 citations60
US7222686B2May 29, 2007
Drive train for series/parallel hybrid vehicle
TM4 INC3 citations60
US10693408B2Jun 23, 2020
Multiple phase electric machine, drive and control
TM4 INC4 citations58
US7906878B2Mar 15, 2011
Cooling assembly for large diameter electric machines
TM4 INC5 citations58
US6984949B2Jan 10, 2006
System and method to selectively prevent movements of an electric vehicle
TM4 INC5 citations57
US7765683B2Aug 3, 2010
Rotor to stator temporary interconnection element for bearingless electric machine
TM4 INC0 citations50
US8004142B2Aug 23, 2011
Stator assembly for electric machines
TM4 INC0 citations47
US7423507B2Sep 9, 2008
Inductance assembly for an electric machine
TM4 INC1 citations47
US10714996B2Jul 14, 2020
External rotor electric machine with SMC blocks interposed between permanent magnets
TM4 INC0 citations46
US10826353B2Nov 3, 2020
Liquid cooled electric machine with enclosed stator
TM4 INC0 citations45
US9647504B2May 9, 2017
Interphase insulator
TM4 INC1 citations44
US9397537B2Jul 19, 2016
Cooling assembly for electric machines
TM4 INC0 citations42
US10468971B2Nov 5, 2019
Power converter configured for limiting switching overvoltage
TM4 INC0 citations35