Inventor · disambiguated record
Charles F. Long
Also filed as: LONG CHARLES F · LONG CHARLES FRANCIS
133 granted patents·5 pending applications·1,622 citations·filing 1988–2023
99Inventor score
Files withALLISON TRANSM INC56GEN MOTORS CORP43LONG CHARLES F25GM GLOBAL TECH OPERATIONS INC9WILSON THOMAS H2
Top patents by PatentIndex Score
138 records- 0197US7395837B2Multiplexed pressure switch system for an electrically variable hybrid transmissionGEN MOTORS CORP·Filed 2005·Granted Jul 8, 2008·64 cites·19 claims
- 0297US7288039B2Multiplexed pressure switch system for an electrically variable hybrid transmissionGEN MOTORS CORP·Filed 2005·Granted Oct 30, 2007·52 cites·17 claims
- 0397US5601506AElectro-hydraulic control system in a power transmissionGEN MOTORS CORP·Filed 1995·Granted Feb 11, 1997·112 cites·4 claims
- 0496US9625007B2Multi-speed transmissionALLISON TRANSM INC·Filed 2014·Granted Apr 18, 2017·24 cites·14 claims
- 0596US7285066B2Multiplexed trim valve system for an electrically variable hybrid transmissionGEN MOTORS CORP·Filed 2005·Granted Oct 23, 2007·43 cites·18 claims
- 0695US9222578B2Electro-hydraulic control system diagnosticsALLISON TRANSM INC·Filed 2014·Granted Dec 29, 2015·15 cites·17 claims
- 0795US7896769B2Manual valve control for multi-speed planetary transmissionALLISON TRANSM INC·Filed 2008·Granted Mar 1, 2011·20 cites·18 claims
- 0895US6285942B1Flow-based on-coming clutch fill control for an automatic transmissionGEN MOTORS CORP·Filed 2000·Granted Sep 4, 2001·54 cites·6 claims
- 0994US9903242B2Scavenge pump oil level control system and methodALLISON TRANSM INC·Filed 2016·Granted Feb 27, 2018·7 cites·18 claims
- 1094US9108499B2Hydraulic system and method for a hybrid vehicleALLISON TRANSM INC·Filed 2013·Granted Aug 18, 2015·16 cites·13 claims
- 1194US7396306B2Multiplexed control system and method for an electrically variable hybrid transmissionGEN MOTORS CORP·Filed 2005·Granted Jul 8, 2008·33 cites·7 claims
- 1294US6520881B1Fly-by-wire electro-hydraulic control mechanism for a six speed transmissionGEN MOTORS CORP·Filed 2001·Granted Feb 18, 2003·50 cites·5 claims
- 1393US8070637B2Manual valve control for multi-speed planetary transmissionLONG CHARLES F·Filed 2011·Granted Dec 6, 2011·10 cites·21 claims
- 1493US7140993B2Fly-by-wire limp home and multi-plex systemGEN MOTORS CORP·Filed 2004·Granted Nov 28, 2006·42 cites·5 claims
- 1593US6585617B1Electro-hydraulic control system for a multi-speed power transmissionGEN MOTORS CORP·Filed 2001·Granted Jul 1, 2003·45 cites·5 claims
- 1693US5216606ACompensated control method for filling a fluid-operated automatic transmission clutchGEN MOTORS CORP·Filed 1991·Granted Jun 1, 1993·58 cites·7 claims
- 1792US8852049B2Fast valve actuation system for an automatic transmissionLONG CHARLES F·Filed 2010·Granted Oct 7, 2014·11 cites·13 claims
- 1892US8050835B2Method and apparatus for clutch pressure controlALLISON TRANSM INC·Filed 2009·Granted Nov 1, 2011·13 cites·21 claims
- 1992US6319164B1Electro-hydraulic control with a manual selection valveGEN MOTORS CORP·Filed 2000·Granted Nov 20, 2001·45 cites·3 claims
- 2091US7510496B2Electro-hydraulic control system with interlock protectionGEN MOTORS CORP·Filed 2006·Granted Mar 31, 2009·22 cites·24 claims
- 2191US7322899B1Electro-hydraulic control system for an electrically variable hybrid transmissionGEN MOTORS CORP·Filed 2005·Granted Jan 29, 2008·28 cites·18 claims
- 2291US6382248B1Self-diagnosing pressure regulator apparatusGEN MOTORS CORP·Filed 2001·Granted May 7, 2002·51 cites·10 claims
- 2390US9765877B2Electronically controlled range valve for multi-speed planetary transmissionALLISON TRANSM INC·Filed 2014·Granted Sep 19, 2017·7 cites·18 claims
- 2490US9267582B2System and method for multiplexing gear engagement control and providing fault protection in a toroidal traction drive automatic transmissionLONG CHARLES F·Filed 2013·Granted Feb 23, 2016·7 cites·19 claims
- 2590US7651427B2Electro-hydraulic control system with multiplexed pressure switch diagnostic systemGM GLOBAL TRECHNOLOGY OPERATIO·Filed 2007·Granted Jan 26, 2010·26 cites·14 claims
- 2690US5911244APressure control valveGEN MOTORS CORP·Filed 1998·Granted Jun 15, 1999·46 cites·4 claims
- 2790US5616093AElectro-hydraulic control system in a power transmissionGEN MOTORS CORP·Filed 1995·Granted Apr 1, 1997·52 cites·2 claims
- 2890US4827806ALogic valving for a transmission controlGEN MOTORS CORP·Filed 1988·Granted May 9, 1989·48 cites·4 claims
- 2989US9347555B2Variator lockout valve systemALLISON TRANSM INC·Filed 2014·Granted May 24, 2016·7 cites·18 claims
- 3089US9309792B2System and method for controlling pump performance in a transmissionALLISON TRANSM INC·Filed 2013·Granted Apr 12, 2016·6 cites·21 claims
- 3189US8371988B2Electronically controlled range valve for multi-speed planetary transmissionALLISON TRANSM INC·Filed 2009·Granted Feb 12, 2013·12 cites·21 claims
- 3289US7980995B2Electro-hydraulic control system with multiplexed solenoid for retarder operation and main pressure modulationGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Jul 19, 2011·15 cites·10 claims
- 3389US5534665AWiring harness shroudGEN MOTORS CORP·Filed 1994·Granted Jul 9, 1996·66 cites·5 claims
- 3488US10920875B2Control system and method thereof for multispeed transmissionALLISON TRANSM INC·Filed 2018·Granted Feb 16, 2021·2 cites·19 claims
- 3588US9562594B2Variator multiplex valve scheme for a torroidal traction drive transmissionALLISON TRANSM INC·Filed 2014·Granted Feb 7, 2017·7 cites·19 claims
- 3688US8401752B2Fail-to-neutral system and method for a toroidal traction drive automatic transmissionLONG CHARLES F·Filed 2010·Granted Mar 19, 2013·7 cites·12 claims
- 3788USRE42131EFly-by-wire limp home and multi-plex systemGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted Feb 8, 2011·13 cites·9 claims
- 3887US9651144B2Method of controlling a hydraulic pressurization system of a transmissionALLISON TRANSM INC·Filed 2013·Granted May 16, 2017·6 cites·23 claims
- 3986US9182034B2Modulation control system and method for a hybrid transmissionALLISON TRANSM INC·Filed 2013·Granted Nov 10, 2015·7 cites·29 claims
- 4086US7666112B2Electro-hydraulic control system with multiplexed trim valves for a transmissionGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Feb 23, 2010·13 cites·14 claims
- 4186US7255214B2Damper lock-out clutch and motor/generator cooling multiplexed control system and method for an electrically variable hybrid transmissionsGEN MOTORS CORP·Filed 2005·Granted Aug 14, 2007·20 cites·10 claims
- 4285US8589043B2Fail-to-neutral system and method for toroidal traction drive automatic transmissionLONG CHARLES F·Filed 2013·Granted Nov 19, 2013·5 cites·18 claims
- 4385US8424373B2Variator fault detection systemLONG CHARLES F·Filed 2010·Granted Apr 23, 2013·6 cites·21 claims
- 4484US11420609B2System and method for controlling engine stop-start eventsALLISON TRANSM INC·Filed 2020·Granted Aug 23, 2022·2 cites·21 claims
- 4584US8578802B2System and method for multiplexing gear engagement control and providing fault protection in a toroidal traction drive automatic transmissionLONG CHARLES F·Filed 2010·Granted Nov 12, 2013·6 cites·20 claims
- 4684US8403791B2Manual valve control for multi-speed planetary transmissionLONG CHARLES F·Filed 2012·Granted Mar 26, 2013·4 cites·21 claims
- 4784US7517296B2Variable motor/generator cooling control system for electrically variable hybrid vehicular transmissionsGEN MOTORS CORP·Filed 2005·Granted Apr 14, 2009·12 cites·9 claims
- 4884US7338407B2Reduced engine load at stop apparatus and methodGEN MOTORS CORP·Filed 2006·Granted Mar 4, 2008·12 cites·13 claims
- 4983US7736269B2Electro-hydraulic control system with three-position dog clutch actuator valveGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Jun 15, 2010·21 cites·16 claims
- 5083US7527338B2Hydrodynamic retarder control apparatusGEN MOTORS CORP·Filed 2005·Granted May 5, 2009·12 cites·6 claims
Showing the top 50 of 138 patent records by PatentIndex Score.
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