Inventor · disambiguated record
Christopher John Greenwood
Also filed as: GREENWOOD CHRISTOPHER · GREENWOOD CHRISTOPHER J · GREENWOOD CHRISTOPHER JOHN
42 granted patents·4 pending applications·1,921 citations·filing 1982–2014
99Inventor score
Files withTOROTRAK DEV LTD26GREENWOOD CHRISTOPHER JOHN7LEYLAND VEHICLES6MTD PRODUCTS INC2BRITISH TECH GROUP1
Top patents by PatentIndex Score
46 records- 0199US6066067APosition servo systemsTOROTRAK DEV LTD·Filed 1995·Granted May 23, 2000·302 cites·16 claims
- 0299US5766105AContinuously variable transmission capable of torque controlTOROTRAK DEV LTD·Filed 1994·Granted Jun 16, 1998·147 cites·24 claims
- 0397US5895337AContinuously-variable-ratios transmissionsTOROTRAK DEV LTD·Filed 1996·Granted Apr 20, 1999·101 cites·5 claims
- 0497US5643121AContinuously-variable-ratio transmissionsTOROTRAK DEV LTD·Filed 1994·Granted Jul 1, 1997·80 cites·8 claims
- 0596US7992659B2Steering systems, steering and speed coordination systems, and associated vehiclesMTD PRODUCTS INC·Filed 2006·Granted Aug 9, 2011·49 cites·11 claims
- 0694US5938557ACVT Control SystemTOROTRAK DEV LTD·Filed 1998·Granted Aug 17, 1999·58 cites·15 claims
- 0793US7318786B2Hydraulic control circuit for a variatorTOROTRAK DEV LTD·Filed 2002·Granted Jan 15, 2008·42 cites·15 claims
- 0893US5090951AHydraulic control circuits for continuously-variable-ratio transmissionsTOROTRAK DEV LTD·Filed 1989·Granted Feb 25, 1992·51 cites·8 claims
- 0993US4922788AContinuously variable transmissionTOROTRAK DEV LTD·Filed 1988·Granted May 8, 1990·52 cites·11 claims
- 1092US7407459B2Continuously variable ratio transmission systemTOROTRAK DEV LTD·Filed 2003·Granted Aug 5, 2008·39 cites·20 claims
- 1192US6626793B1Hydraulic control circuit for a continuously-variable-transmissionTOROTRAK DEV LTD·Filed 2000·Granted Sep 30, 2003·39 cites·26 claims
- 1292US5395292ATransmissions of the toroidal-race rolling-traction typeTOROTRAK DEV LTD·Filed 1993·Granted Mar 7, 1995·59 cites·35 claims
- 1391US7955210B2Drive mechanism for infinitely variable transmissionTOROTRAK DEV LTD·Filed 2006·Granted Jun 7, 2011·27 cites·16 claims
- 1491US5242337AContinuously-variable-ratio transmissions of the toroidal-race rolling-traction typeTOROTRAK DEV LTD·Filed 1990·Granted Sep 7, 1993·51 cites·5 claims
- 1590US6666791B1Bearing support for infinitely-variable-ratio transmission output discsTOROTRAK DEV LTD·Filed 2000·Granted Dec 23, 2003·32 cites·10 claims
- 1690US6522626B1Power line communications system and method of operation thereofNORTEL NETWORKS LTD·Filed 1999·Granted Feb 18, 2003·108 cites·11 claims
- 1790US6312356B1Drive mechanism for infinitely variable transmissionTOROTRAK DEV LTD·Filed 2000·Granted Nov 6, 2001·32 cites·20 claims
- 1890US5521819AControl systems for drivelines including continuously-variable-ratio transmissionsBRITISH TECH GROUP·Filed 1994·Granted May 28, 1996·83 cites·5 claims
- 1989US7530916B2Continuously variable ratio transmission systemTOROTRAK DEV LTD·Filed 2004·Granted May 12, 2009·30 cites·8 claims
- 2089US7491149B2Fluid supply arrangement for a rolling-traction continuously variable ratio transmission unitTOROTRAK DEV LTD·Filed 2003·Granted Feb 17, 2009·44 cites·13 claims
- 2189US6071209AContinuously-variable-ratio transmission of the toroidal-race-rolling traction typeTOROTRAK DEV LTD·Filed 1996·Granted Jun 6, 2000·46 cites·7 claims
- 2287US6030310AVariator control systemTOROTRAK DEV LTD·Filed 1998·Granted Feb 29, 2000·63 cites·13 claims
- 2386US5971885ARoller assemblyTOROTRAK DEV LTD·Filed 1998·Granted Oct 26, 1999·44 cites·12 claims
- 2484US7632208B2Continuously variable transmissionsTOROTRAK DEV LTD·Filed 2003·Granted Dec 15, 2009·28 cites·24 claims
- 2584US5820513AMethod of controlling vehicular drivelines including a continuously variable transmissionTOROTRAK DEV LTD·Filed 1994·Granted Oct 13, 1998·36 cites·6 claims
- 2683US9102223B2Energy recovery system for a vehicle drivelineGREENWOOD CHRISTOPHER JOHN·Filed 2009·Granted Aug 11, 2015·16 cites·6 claims
- 2782US8157030B2Driving and steering of motor vehiclesGREENWOOD CHRISTOPHER JOHN·Filed 2006·Granted Apr 17, 2012·14 cites·17 claims
- 2882US5338268AToroidal-race rolling-traction type transmissionTOROTRAK DEV LTD·Filed 1993·Granted Aug 16, 1994·33 cites·11 claims
- 2980US4662240AContinuously variable transmissionLEYLAND VEHICLES·Filed 1985·Granted May 5, 1987·29 cites·12 claims
- 3079US5308297ATransmissions of the toroidal-race rolling-traction typeTOROTRAK DEV LTD·Filed 1990·Granted May 3, 1994·30 cites·10 claims
- 3178US8919464B2Arrangements for driving and steering of motor vehiclesGREENWOOD CHRISTOPHER JOHN·Filed 2006·Granted Dec 30, 2014·11 cites·24 claims
- 3278US4662248AHydraulic control systemLEYLAND VEHICLES·Filed 1984·Granted May 5, 1987·26 cites·16 claims
- 3376US4679646ADriveline for regenerative brakingLEYLAND VEHICLES·Filed 1984·Granted Jul 14, 1987·29 cites·3 claims
- 3474US4524641AContinuously-variable ratio-transmissionLEYLAND VEHICLES·Filed 1982·Granted Jun 25, 1985·24 cites·16 claims
- 3572US4569251ADriveline for a track-laying vehicle with continuously variable steering and propulsion transmissionsLEYLAND VEHICLES·Filed 1984·Granted Feb 11, 1986·23 cites·7 claims
- 3672US4519485ADriveline for regenerative brakingLEYLAND VEHICLE LIMITED·Filed 1982·Granted May 28, 1985·23 cites·13 claims
- 3771US8292772B2Continuously variable toroidal transmissionGREENWOOD CHRISTOPHER JOHN·Filed 2006·Granted Oct 23, 2012·5 cites·20 claims
- 3865US8393990B2Continuously variable transmissionGREENWOOD CHRISTOPHER JOHN·Filed 2008·Granted Mar 12, 2013·4 cites·14 claims
- 3951US8695734B2Driving and steering of motor vehiclesGREENWOOD CHRISTOPHER JOHN·Filed 2012·Granted Apr 15, 2014·1 cites·14 claims
- 4047US2013296096A1Continuously variable transmissionTOROTRAK DEV LTD·Filed 2013·Application pending·0 cites
- 4147US2015353131A1Arrangements for Driving and Steering Of Motor VehiclesMTD PRODUCTS INC·Filed 2014·Application pending·0 cites
- 4245US8771133B2Drive mechanism for infinitely variable transmissionGREENWOOD CHRISTOPHER J·Filed 2007·Granted Jul 8, 2014·1 cites·16 claims
- 4345US4718299ADriveline for a track laying vehicleLEYLAND VEHICLES·Filed 1987·Granted Jan 12, 1988·9 cites·8 claims
- 4442US2010140034A1Cvt control systemGREENWOOD CHRISTOPHER JOHN·Filed 2008·Application pending·0 cites
- 4538US9568083B2Infinitely-variable transmission for a vehicleTOROTRAK (DEVELOPMENT) LTD·Filed 2013·Granted Feb 14, 2017·0 cites·23 claims
- 4636US2013045831A1Drive mechanism for infinitely variable transmissionTOROTRAK DEV LTD·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →