Inventor
LONG CHARLES F
US119 patents
⚠️ This page may combine multiple inventors who share the name “LONG CHARLES F”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GEN MOTORS CORP
20 patentsUS7395837B2Jul 8, 2008
Multiplexed pressure switch system for an electrically variable hybrid transmission
GEN MOTORS CORP64 citations98
US5601506AFeb 11, 1997
Electro-hydraulic control system in a power transmission
GEN MOTORS CORP112 citations97
US5534665AJul 9, 1996
Wiring harness shroud
GEN MOTORS CORP66 citations96
US5216606AJun 1, 1993
Compensated control method for filling a fluid-operated automatic transmission clutch
GEN MOTORS CORP58 citations96
US7396306B2Jul 8, 2008
Multiplexed control system and method for an electrically variable hybrid transmission
GEN MOTORS CORP33 citations93
US7322899B1Jan 29, 2008
Electro-hydraulic control system for an electrically variable hybrid transmission
GEN MOTORS CORP28 citations93
US7288039B2Oct 30, 2007
Multiplexed pressure switch system for an electrically variable hybrid transmission
GEN MOTORS CORP52 citations93
US7285066B2Oct 23, 2007
Multiplexed trim valve system for an electrically variable hybrid transmission
GEN MOTORS CORP43 citations93
US7255214B2Aug 14, 2007
Damper lock-out clutch and motor/generator cooling multiplexed control system and method for an electrically variable hybrid transmissions
GEN MOTORS CORP20 citations93
US5399130AMar 21, 1995
Transmission control with electronic governor and trim boost
GEN MOTORS CORP27 citations93
US5616093AApr 1, 1997
Electro-hydraulic control system in a power transmission
GEN MOTORS CORP52 citations92
US4827806AMay 9, 1989
Logic valving for a transmission control
GEN MOTORS CORP48 citations92
US7510496B2Mar 31, 2009
Electro-hydraulic control system with interlock protection
GEN MOTORS CORP22 citations91
US7140993B2Nov 28, 2006
Fly-by-wire limp home and multi-plex system
GEN MOTORS CORP42 citations91
US7128084B2Oct 31, 2006
Self-cleaning valve assembly
GEN MOTORS CORP22 citations91
US5319949AJun 14, 1994
Regulator valve assembly for a torque converter
GEN MOTORS CORP20 citations91
US7150288B2Dec 19, 2006
Control valve apparatus
GEN MOTORS CORP12 citations84
US7517296B2Apr 14, 2009
Variable motor/generator cooling control system for electrically variable hybrid vehicular transmissions
GEN MOTORS CORP12 citations83
US7338407B2Mar 4, 2008
Reduced engine load at stop apparatus and method
GEN MOTORS CORP12 citations82
US7527338B2May 5, 2009
Hydrodynamic retarder control apparatus
GEN MOTORS CORP12 citations76
ALLISON TRANSM INC
14 patentsUS9625007B2Apr 18, 2017
Multi-speed transmission
ALLISON TRANSM INC24 citations93
US9222578B2Dec 29, 2015
Electro-hydraulic control system diagnostics
ALLISON TRANSM INC15 citations93
US9108499B2Aug 18, 2015
Hydraulic system and method for a hybrid vehicle
ALLISON TRANSM INC16 citations92
US7896769B2Mar 1, 2011
Manual valve control for multi-speed planetary transmission
ALLISON TRANSM INC20 citations92
US9765877B2Sep 19, 2017
Electronically controlled range valve for multi-speed planetary transmission
ALLISON TRANSM INC7 citations84
US9651144B2May 16, 2017
Method of controlling a hydraulic pressurization system of a transmission
ALLISON TRANSM INC6 citations84
US9347555B2May 24, 2016
Variator lockout valve system
ALLISON TRANSM INC7 citations84
US9309792B2Apr 12, 2016
System and method for controlling pump performance in a transmission
ALLISON TRANSM INC6 citations84
US9182034B2Nov 10, 2015
Modulation control system and method for a hybrid transmission
ALLISON TRANSM INC7 citations84
US8371988B2Feb 12, 2013
Electronically controlled range valve for multi-speed planetary transmission
ALLISON TRANSM INC12 citations84
US9903242B2Feb 27, 2018
Scavenge pump oil level control system and method
ALLISON TRANSM INC7 citations82
US9562594B2Feb 7, 2017
Variator multiplex valve scheme for a torroidal traction drive transmission
ALLISON TRANSM INC7 citations82
US8050835B2Nov 1, 2011
Method and apparatus for clutch pressure control
ALLISON TRANSM INC13 citations82
US10253874B2Apr 9, 2019
System and method for controlling pump performance in a transmission
ALLISON TRANSM INC1 citations73
LONG CHARLES F
8 patentsUS8070637B2Dec 6, 2011
Manual valve control for multi-speed planetary transmission
LONG CHARLES F10 citations92
US9267582B2Feb 23, 2016
System and method for multiplexing gear engagement control and providing fault protection in a toroidal traction drive automatic transmission
LONG CHARLES F7 citations84
US8852049B2Oct 7, 2014
Fast valve actuation system for an automatic transmission
LONG CHARLES F11 citations84
US8589043B2Nov 19, 2013
Fail-to-neutral system and method for toroidal traction drive automatic transmission
LONG CHARLES F5 citations84
US8578802B2Nov 12, 2013
System and method for multiplexing gear engagement control and providing fault protection in a toroidal traction drive automatic transmission
LONG CHARLES F6 citations84
US8424373B2Apr 23, 2013
Variator fault detection system
LONG CHARLES F6 citations84
US8401752B2Mar 19, 2013
Fail-to-neutral system and method for a toroidal traction drive automatic transmission
LONG CHARLES F7 citations84
US8403791B2Mar 26, 2013
Manual valve control for multi-speed planetary transmission
LONG CHARLES F4 citations73
GM GLOBAL TECH OPERATIONS INC
6 patentsUS7736269B2Jun 15, 2010
Electro-hydraulic control system with three-position dog clutch actuator valve
GM GLOBAL TECH OPERATIONS INC21 citations91
USRE42131EFeb 8, 2011
Fly-by-wire limp home and multi-plex system
GM GLOBAL TECH OPERATIONS INC13 citations84
US8052563B2Nov 8, 2011
Electro-hydraulic control system for transmission with dual-area piston for torque-transmitting mechanism
GM GLOBAL TECH OPERATIONS INC9 citations83
US7980995B2Jul 19, 2011
Electro-hydraulic control system with multiplexed solenoid for retarder operation and main pressure modulation
GM GLOBAL TECH OPERATIONS INC15 citations83
US7841457B2Nov 30, 2010
Centrifuge and venting system for a transmission
GM GLOBAL TECH OPERATIONS INC9 citations83
US7666112B2Feb 23, 2010
Electro-hydraulic control system with multiplexed trim valves for a transmission
GM GLOBAL TECH OPERATIONS INC13 citations82
GM GLOBAL TRECHNOLOGY OPERATIO
1 patentAMES DAVID C
1 patentShowing the top 50 of 119 patents by PatentIndex Score.