Inventor · disambiguated record
Brian W. Whitmarsh
Also filed as: WHITMARSH BRIAN W
25 granted patents·182 citations·filing 2001–2017
95Inventor score
Files withGM GLOBAL TECH OPERATIONS INC6GEN MOTORS CORP5GM GLOBAL TECH OPERATIONS LLC5WHITMARSH BRIAN W2FANNIN MICHAEL P1
Top patents by PatentIndex Score
25 records- 0194US10167948B2Hydraulic control system for an automatic transmissionGM GLOBAL TECH OPERATIONS LLC·Filed 2017·Granted Jan 1, 2019·7 cites·20 claims
- 0291US8069661B2Transmission hydraulic control system having an accumulatorHENDRICKSON JAMES D·Filed 2009·Granted Dec 6, 2011·21 cites·10 claims
- 0391US7797933B2Servo system augmented with an active material componentGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted Sep 21, 2010·12 cites·19 claims
- 0488US7325885B2Regulator valve for a torque-transmitting mechanism and method of engaging a torque-transmitting mechanismGEN MOTORS CORP·Filed 2005·Granted Feb 5, 2008·19 cites·10 claims
- 0586US8475336B2Hydraulic control system for a dual clutch transmissionWHITMARSH BRIAN W·Filed 2010·Granted Jul 2, 2013·11 cites·17 claims
- 0683US10161506B2Hydraulic control system for an automatic transmission with electronic transmission range selectionGM GLOBAL TECH OPERATIONS LLC·Filed 2016·Granted Dec 25, 2018·3 cites·17 claims
- 0782US8887498B2Transmission hydraulic control system having an accumulator bypass valve assemblyFRERICHS TODD A·Filed 2010·Granted Nov 18, 2014·8 cites·8 claims
- 0882US8613681B2Transmission hydraulic control system having clutch compensator feed overrideSOWARDS MICHAEL D·Filed 2009·Granted Dec 24, 2013·13 cites·17 claims
- 0979US10012311B2Hydraulic control system for an automatic transmission having a neutral locked turbine modeGM GLOBAL TECH OPERATIONS LLC·Filed 2016·Granted Jul 3, 2018·2 cites·20 claims
- 1079US8485931B1Multiplexed fluid control circuitGM GLOBAL TECH OPERATIONS INC·Filed 2012·Granted Jul 16, 2013·6 cites·18 claims
- 1178US7752935B2Control system for a multi-speed transmissionGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted Jul 13, 2010·11 cites·22 claims
- 1278US6669598B2Line pressure control for a continuously variable transmissionGEN MOTORS CORP·Filed 2002·Granted Dec 30, 2003·18 cites·2 claims
- 1377US8942901B2Method of controlling a hydraulic control system for a dual clutch transmissionLUNDBERG PHILIP C·Filed 2011·Granted Jan 27, 2015·4 cites·18 claims
- 1473US6595340B2Charging system for a rotating clutch assemblyGEN MOTORS CORP·Filed 2001·Granted Jul 22, 2003·11 cites·15 claims
- 1570US7082851B2Hydraulic servo assembly for an internal electronic transmission range selection (ETRS) systemGEN MOTORS CORP·Filed 2003·Granted Aug 1, 2006·13 cites·14 claims
- 1669US10161508B2Hydraulic control system for an automatic transmission having default gears applied through a clutch hydraulic exhaust circuitGM GLOBAL TECH OPERATIONS LLC·Filed 2016·Granted Dec 25, 2018·1 cites·20 claims
- 1767US7896775B2Control system for electronic range selection in a dual clutch transmissionGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Mar 1, 2011·5 cites·16 claims
- 1866US8065930B2Hydraulic actuator for transmissions having reduced noiseSOWUL HENRYK·Filed 2008·Granted Nov 29, 2011·4 cites·19 claims
- 1960US8012063B2Pressure assisted park servoGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted Sep 6, 2011·3 cites·14 claims
- 2059US7828684B2Control system for a differential in a transmissionGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Nov 9, 2010·3 cites·19 claims
- 2155US6622835B2Engagement control having a multiplexed hydraulic circuit for controlling a torque converter clutch and shifting clutches in an automatic transmissionGEN MOTORS CORP·Filed 2002·Granted Sep 23, 2003·6 cites·3 claims
- 2254US9765885B2Method of controlling a hydraulic control system for a dual clutch transmissionGM GLOBAL TECH OPERATIONS LLC·Filed 2015·Granted Sep 19, 2017·0 cites·12 claims
- 2351US9033681B2Control valve body with integrated pump for automatic transmissionsFANNIN MICHAEL P·Filed 2009·Granted May 19, 2015·1 cites·20 claims
- 2436US8771120B2Control system for electronic range selection in a dual clutch transmission and for a differential in a transmissionVERNACCHIA MARK A·Filed 2011·Granted Jul 8, 2014·0 cites·15 claims
- 2535US8955661B2Electro-hydraulic control system using shift valves for a hybrid drive unitWHITMARSH BRIAN W·Filed 2012·Granted Feb 17, 2015·0 cites·19 claims
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