Inventor
DIEMER JOHN A
US52 patents
⚠️ This page may combine multiple inventors who share the name “DIEMER JOHN A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GM GLOBAL TECH OPERATIONS INC
24 patentsUS7473199B2Jan 6, 2009
Two-planetary electrically variable transmissions with multiple fixed ratios
GM GLOBAL TECH OPERATIONS INC27 citations92
US7339300B2Mar 4, 2008
Structural support member for stator retention and method of assembling an electromechanical transmission
GM GLOBAL TECH OPERATIONS INC49 citations92
US8011261B2Sep 6, 2011
Multi-speed transmission with countershaft gearing arrangement
GM GLOBAL TECH OPERATIONS INC13 citations84
US7419041B2Sep 2, 2008
Main shaft dog clutch and method
GM GLOBAL TECH OPERATIONS INC9 citations84
US7387586B2Jun 17, 2008
Three planetary electrically variable transmissions with mechanical reverse
GM GLOBAL TECH OPERATIONS INC15 citations84
US7494439B2Feb 24, 2009
Dual drive pump with dual chain and roller clutch and method
GM GLOBAL TECH OPERATIONS INC9 citations83
US7886626B2Feb 15, 2011
Multi-speed dual clutch transmission
GM GLOBAL TECH OPERATIONS INC17 citations82
US8758179B2Jun 24, 2014
Electrically-variable transmission for a vehicle
GM GLOBAL TECH OPERATIONS INC7 citations81
US9261186B2Feb 16, 2016
Rotating clutch pack assembly
GM GLOBAL TECH OPERATIONS INC5 citations73
US7780567B2Aug 24, 2010
Input brake assembly
GM GLOBAL TECH OPERATIONS INC7 citations71
US9391496B2Jul 12, 2016
Transmission for a vehicle
GM GLOBAL TECH OPERATIONS INC2 citations62
US9052003B2Jun 9, 2015
Multi-speed transmission gear and clutch arrangement
GM GLOBAL TECH OPERATIONS INC3 citations62
US8376900B2Feb 19, 2013
Clutch assembly
GM GLOBAL TECH OPERATIONS INC3 citations62
US7703346B2Apr 27, 2010
Multi-speed transmission with countershaft gearing
GM GLOBAL TECH OPERATIONS INC3 citations62
US7591749B2Sep 22, 2009
Electrically variable transmission with one or more off-axis motor/generators
GM GLOBAL TECH OPERATIONS INC2 citations62
US9080650B2Jul 14, 2015
Multi-speed transmission
GM GLOBAL TECH OPERATIONS INC2 citations61
US7644639B2Jan 12, 2010
Multi-speed transmission with countershaft gearing
GM GLOBAL TECH OPERATIONS INC2 citations61
US7913580B2Mar 29, 2011
Apparatus and method for securing transmission gear synchronizers to shafts
GM GLOBAL TECH OPERATIONS INC3 citations60
US9227501B2Jan 5, 2016
Transmission for a vehicle and a method of assembling a modular motor assembly in the transmission
GM GLOBAL TECH OPERATIONS INC1 citations51
US8366557B2Feb 5, 2013
Engine drive plate connection
GM GLOBAL TECH OPERATIONS INC0 citations51
US7309165B2Dec 18, 2007
Ball bearing retention apparatus
GM GLOBAL TECH OPERATIONS INC0 citations51
US9347502B2May 24, 2016
Transmission having a strap spring hub
GM GLOBAL TECH OPERATIONS INC0 citations50
US7470066B2Dec 30, 2008
Pump bearing assembly with seal
GM GLOBAL TECH OPERATIONS INC0 citations48
US9291210B2Mar 22, 2016
Flywheel and dual clutch module assembly
GM GLOBAL TECH OPERATIONS INC1 citations46
GM GLOBAL TECH OPERATIONS LLC
8 patentsUS10780849B1Sep 22, 2020
Electric drive units with integrated power electronics for vehicle powertrains
GM GLOBAL TECH OPERATIONS LLC21 citations91
US9452682B2Sep 27, 2016
Transmission for a vehicle
GM GLOBAL TECH OPERATIONS LLC8 citations83
US11005326B2May 11, 2021
Electric drive unit having cover assembly with integrated cooling channels
GM GLOBAL TECH OPERATIONS LLC3 citations70
US9982723B2May 29, 2018
Rotating clutch pack assembly
GM GLOBAL TECH OPERATIONS LLC0 citations52
US11167832B2Nov 9, 2021
Electrically propelled watercraft with corresponding hull assembly
GM GLOBAL TECH OPERATIONS LLC0 citations49
US10340763B2Jul 2, 2019
Isolation ring for electric motor end windings
GM GLOBAL TECH OPERATIONS LLC0 citations47
US12553514B1Feb 17, 2026
System and apparatus for lubrication of a hybrid transmission
GM GLOBAL TECH OPERATIONS LLC0 citations44
US10486517B2Nov 26, 2019
Concentric bridge gear system
GM GLOBAL TECH OPERATIONS LLC0 citations41
DIEMER JOHN A
5 patentsUS8636125B2Jan 28, 2014
Actuation device having wiper seals for a dual clutch transmission
DIEMER JOHN A4 citations68
US8500588B2Aug 6, 2013
Automatic transmission gear and clutch arrangement
DIEMER JOHN A3 citations61
US8117935B2Feb 21, 2012
Synchronizer actuating system with selectives
DIEMER JOHN A5 citations57
US8905850B2Dec 9, 2014
Transmission for a vehicle and a shaft assembly for transferring a fluid in the transmission of the vehicle
DIEMER JOHN A1 citations47
US8978860B2Mar 17, 2015
Transmission for a vehicle and a method of assembling the transmission
DIEMER JOHN A0 citations41
PORTELL PATRICK S
3 patentsUS8105196B2Jan 31, 2012
Automatic transmission gear and clutch arrangement
PORTELL PATRICK S10 citations82
US8628442B2Jan 14, 2014
Automatic transmission gear and clutch arrangement
PORTELL PATRICK S1 citations61
US8262526B2Sep 11, 2012
Automatic transmission gear and clutch arrangement
PORTELL PATRICK S4 citations61
HEITZENRATER SCOTT WILLIAM
2 patentsM C AEROSPACE CORP
1 patentGM Global Technologies Operations LLC
1 patentBURGMAN BORIS
1 patentBJORCK PER-GUNNAR
1 patentDAIMLER CHRYSLER CORP
1 patentROSES VICTOR M
1 patentFRERICHS TODD A
1 patentFANNIN MICHAEL P
1 patentShowing the top 50 of 52 patents by PatentIndex Score.