Inventor · disambiguated record
Alan G. Holmes
Also filed as: HOLMES ALAN · HOLMES ALAN G · HOLMES ALAN GLEN
187 granted patents·16 pending applications·3,609 citations·filing 1979–2024
99Inventor score
Files withGM GLOBAL TECH OPERATIONS INC66GM GLOBAL TECH OPERATIONS LLC54HOLMES ALAN G28GEN MOTORS CORP22TATE JR EDWARD D5
Top patents by PatentIndex Score
203 records- 0199US6953409B2Two-mode, compound-split, hybrid electro-mechanical transmission having four fixed ratiosGEN MOTORS CORP·Filed 2004·Granted Oct 11, 2005·282 cites·26 claims
- 0299US6527658B2Electrically variable transmission with selective input split, compound split, neutral and reverse modesGEN MOTORS CORP·Filed 2001·Granted Mar 4, 2003·301 cites·16 claims
- 0399US6478705B1Hybrid electric powertrain including a two-mode electrically variable transmissionGEN MOTORS CORP·Filed 2001·Granted Nov 12, 2002·445 cites·9 claims
- 0498US9840140B1Compound-power-split electrically variable transmissions with motor clutching devicesGM GLOBAL TECH OPERATIONS LLC·Filed 2016·Granted Dec 12, 2017·27 cites·20 claims
- 0598US9108633B1Hybrid powertrain and method of controlling sameGM GLOBAL TECH OPERATIONS INC·Filed 2014·Granted Aug 18, 2015·42 cites·27 claims
- 0698US7998023B2Hybrid powertrain with an engine input clutch and method of controlGM GLOBAL TECH OPERATIONS INC·Filed 2010·Granted Aug 16, 2011·24 cites·10 claims
- 0798US7575529B2Hybrid electrically variable transmission with geared reverse mode using single motor/generatorGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Aug 18, 2009·70 cites·19 claims
- 0898US7538457B2Electric motor assemblies with coolant flow for concentrated windingsGEN MOTORS CORP·Filed 2006·Granted May 26, 2009·78 cites·6 claims
- 0998US7479081B2Hybrid electrically variable transmission with dual power paths and selective motor connectionGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Jan 20, 2009·80 cites·11 claims
- 1098US6551208B1Three-mode, compound-split, electrically-variable transmissionGEN MOTORS CORP·Filed 2001·Granted Apr 22, 2003·201 cites·8 claims
- 1197US11713803B1Carbon fiber composite drive unit housings for electric vehiclesGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Aug 1, 2023·5 cites·17 claims
- 1297US8702544B2Wide-node drive systemTAMAI GORO·Filed 2012·Granted Apr 22, 2014·41 cites·20 claims
- 1397US7615903B2Structural support member for electric motor/generator in electromechanical transmissionGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Nov 10, 2009·53 cites·18 claims
- 1497US7256510B2Hybrid electro-mechanical transmission with single motor/generator and method of controlGEN MOTORS CORPORTION·Filed 2005·Granted Aug 14, 2007·75 cites·17 claims
- 1597US7220203B2Electrically variable transmission with selective fixed ratio operationGEN MOTORS CORP·Filed 2005·Granted May 22, 2007·53 cites·13 claims
- 1696US11916446B2Rotor assembly with solid low friction layer and press-fit sleeveGM GLOBAL TECH OPERATIONS LLC·Filed 2021·Granted Feb 27, 2024·2 cites·20 claims
- 1796US7169074B2Electrically variable transmission having two planetary gear sets with one stationary memberGEN MOTORS CORP·Filed 2005·Granted Jan 30, 2007·39 cites·15 claims
- 1895US12155266B2Bridgeless and webless rotor assembly using polymer compositesGM GLOBAL TECH OPERATIONS LLC·Filed 2021·Granted Nov 26, 2024·2 cites·21 claims
- 1995US12088146B2Rotor for an electric machine, electric machine for a vehicle, and vehicleGM GLOBAL TECH OPERATIONS LLC·Filed 2021·Granted Sep 10, 2024·2 cites·20 claims
- 2095US9657705B2Powertrain for a vehicle and an electromechanical apparatus coupleable to an engineGM GLOBAL TECH OPERATIONS LLC·Filed 2014·Granted May 23, 2017·22 cites·47 claims
- 2195US7980980B2Hybrid powertrainGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Jul 19, 2011·31 cites·17 claims
- 2294US9950607B2Powertrain with multi-planetary, single motor drive unitGM GLOBAL TECH OPERATIONS LLC·Filed 2015·Granted Apr 24, 2018·22 cites·7 claims
- 2394US9765869B2Dual clutch continuously variable transmissionGM GLOBAL TECH OPERATIONS LLC·Filed 2015·Granted Sep 19, 2017·7 cites·20 claims
- 2494US9482330B1Hybrid transmissionGM GLOBAL TECH OPERATIONS LLC·Filed 2015·Granted Nov 1, 2016·7 cites·12 claims
- 2594US9370992B2Powertrain for a vehicleGM GLOBAL TECH OPERATIONS INC·Filed 2014·Granted Jun 21, 2016·15 cites·52 claims
- 2694US8606450B2Hybrid powertrain with geared starter motor and belt alternator starter and method of restarting an engineHOLMES ALAN G·Filed 2011·Granted Dec 10, 2013·45 cites·12 claims
- 2794US8267231B2Electrically variable transmission with an axially-moveable selectable one-way clutch assemblyHOLMES ALAN G·Filed 2008·Granted Sep 18, 2012·23 cites·15 claims
- 2894US7645206B2Three mode electrically-variable transmissionGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Jan 12, 2010·35 cites·27 claims
- 2993US10300905B2Electric vehicle drive using combined differential and reduction gearingGM GLOBAL TECH OPERATIONS LLC·Filed 2017·Granted May 28, 2019·15 cites·19 claims
- 3093US9573454B2Powertrain for a vehicle and a method of assembling the powertrainGM GLOBAL TECH OPERATIONS LLC·Filed 2016·Granted Feb 21, 2017·8 cites·20 claims
- 3193US8296020B2Use of selectable one-way clutch in hybrid powertrainLEE CHUNHAO J·Filed 2011·Granted Oct 23, 2012·15 cites·15 claims
- 3293US7610976B2Hybrid powertrain with electrically variable transmission having parallel friction launch and methodGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Nov 3, 2009·34 cites·7 claims
- 3393US7473199B2Two-planetary electrically variable transmissions with multiple fixed ratiosGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Jan 6, 2009·27 cites·17 claims
- 3493US7278941B2Electrically variable transmission with selective fixed ratio operationGEN MOTORS CORP·Filed 2005·Granted Oct 9, 2007·31 cites·12 claims
- 3592US12494687B2Rotor assembly with a composite sleeve that is optimized for press-fit installationGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Dec 9, 2025·1 cites·20 claims
- 3692US7748482B2Accessory drive system for a hybrid vehicleGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Jul 6, 2010·34 cites·7 claims
- 3792US7597648B2Input brake providing electric only fixed gearGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Oct 6, 2009·32 cites·18 claims
- 3892US7594869B2Torque-transmitting assembly with dog clutch and hydrostatic damper and electrically variable transmission with sameGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Sep 29, 2009·30 cites·12 claims
- 3992US7192373B2Electrically variable transmission having two planetary gear sets with one fixed interconnectionGEN MOTORS CORP·Filed 2004·Granted Mar 20, 2007·68 cites·16 claims
- 4091US12451781B2Hybrid excited rotary machineGM GLOBAL TECH OPERATIONS LLC·Filed 2023·Granted Oct 21, 2025·1 cites·16 claims
- 4191US10982745B2Planetary differential drive systemGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted Apr 20, 2021·6 cites·16 claims
- 4291US8182391B2Electric torque converter for a powertrain and method of operating a vehicleKLEMEN DONALD·Filed 2008·Granted May 22, 2012·28 cites·19 claims
- 4391US7967711B2Highly configurable hybrid powertrain and control system thereforGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Jun 28, 2011·27 cites·7 claims
- 4491US7427252B2Electrically variable transmission with input split mode and compound split modesGM GLOBAL TECH OPERATIONS INC·Filed 2005·Granted Sep 23, 2008·28 cites·16 claims
- 4591US7399246B2Hybrid power transmissionGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Jul 15, 2008·28 cites·5 claims
- 4690US12301060B2Rotors for electric motorsGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted May 13, 2025·1 cites·20 claims
- 4790US10920859B2Two-speed electric drive-unitGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted Feb 16, 2021·4 cites·20 claims
- 4890US8512189B2Hybrid powertrain with compound-split EVT drive axle and electric drive axleHOLMES ALAN G·Filed 2011·Granted Aug 20, 2013·13 cites·15 claims
- 4990US8068947B2Range maximization of a hybrid vehicle operating in an electric vehicle operating stateCONLON BRENDAN M·Filed 2007·Granted Nov 29, 2011·28 cites·23 claims
- 5090US7847444B2Electric motor assembly with stator mounted in vehicle powertrain housing and methodGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted Dec 7, 2010·22 cites·10 claims
Showing the top 50 of 203 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →