BW

Brian W. Whitmarsh

General Motors: 25 patents #479 of 18,328Top 3%
Overall (All Time): #163,516 of 4,157,543Top 4%
25
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10167948 Hydraulic control system for an automatic transmission Chinar S. Ghike, Joel H. Gunderson 2019-01-01
10161506 Hydraulic control system for an automatic transmission with electronic transmission range selection Chinar S. Ghike, Joel H. Gunderson 2018-12-25
10161508 Hydraulic control system for an automatic transmission having default gears applied through a clutch hydraulic exhaust circuit 2018-12-25
10012311 Hydraulic control system for an automatic transmission having a neutral locked turbine mode 2018-07-03
9765885 Method of controlling a hydraulic control system for a dual clutch transmission Philip C. Lundberg, Bret M. Olson, Wayne B. Vogel 2017-09-19
9033681 Control valve body with integrated pump for automatic transmissions Michael P. Fannin, John A. Diemer, Douglas John Dwenger 2015-05-19
8955661 Electro-hydraulic control system using shift valves for a hybrid drive unit Tami A. Curtis, Denise Ann Miller 2015-02-17
8942901 Method of controlling a hydraulic control system for a dual clutch transmission Philip C. Lundberg, Bret M. Olson, Wayne B. Vogel 2015-01-27
8887498 Transmission hydraulic control system having an accumulator bypass valve assembly Todd A. Frerichs 2014-11-18
8771120 Control system for electronic range selection in a dual clutch transmission and for a differential in a transmission Mark A. Vernacchia, Joshua E. Lehrmann, Wayne B. Vogel, Todd W. Rooney 2014-07-08
8613681 Transmission hydraulic control system having clutch compensator feed override Michael Sowards 2013-12-24
8485931 Multiplexed fluid control circuit 2013-07-16
8475336 Hydraulic control system for a dual clutch transmission Bret M. Olson, Philip C. Lundberg, Wayne B. Vogel 2013-07-02
8069661 Transmission hydraulic control system having an accumulator James D. Hendrickson, Henryk Sowul 2011-12-06
8065930 Hydraulic actuator for transmissions having reduced noise Henryk Sowul, Tejinder Singh, Brian Tooman, James D. Hendrickson, Richard A. Pashnik 2011-11-29
8012063 Pressure assisted park servo Stephen W. Powell, Mark A. Vernacchia, Ryan M. Jenness 2011-09-06
7896775 Control system for electronic range selection in a dual clutch transmission Mark A. Vernacchia, Joshua E. Lehrmann, Wayne B. Vogel, Todd W. Rooney 2011-03-01
7828684 Control system for a differential in a transmission Todd W. Rooney, Mark A. Vernacchia, Joshua E. Lehrmann, Wayne B. Vogel 2010-11-09
7797933 Servo system augmented with an active material component Nilesh D. Mankame, Norman K. Bucknor, Alan L. Browne, Paul W. Alexander, Nancy L. Johnson +3 more 2010-09-21
7752935 Control system for a multi-speed transmission Mark A. Vernacchia, Joshua E. Lehrmann, Todd W. Rooney, Wayne B. Vogel 2010-07-13
7325885 Regulator valve for a torque-transmitting mechanism and method of engaging a torque-transmitting mechanism Todd R. Berger, Steven P. Moorman 2008-02-05
7082851 Hydraulic servo assembly for an internal electronic transmission range selection (ETRS) system Stephen W. Powell, Ryan M. Jenness 2006-08-01
6669598 Line pressure control for a continuously variable transmission Todd R. Berger, Steven P. Moorman 2003-12-30
6622835 Engagement control having a multiplexed hydraulic circuit for controlling a torque converter clutch and shifting clutches in an automatic transmission Steven P. Moorman, Todd R. Berger 2003-09-23
6595340 Charging system for a rotating clutch assembly Steven P. Moorman, Joel H. Gunderson 2003-07-22