Inventor
GREENWOOD CHRISTOPHER JOHN
GB25 patents
⚠️ This page may combine multiple inventors who share the name “GREENWOOD CHRISTOPHER JOHN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOROTRAK DEV LTD
17 patentsUS6066067AMay 23, 2000
Position servo systems
TOROTRAK DEV LTD302 citations99
US5895337AApr 20, 1999
Continuously-variable-ratios transmissions
TOROTRAK DEV LTD101 citations97
US5766105AJun 16, 1998
Continuously variable transmission capable of torque control
TOROTRAK DEV LTD147 citations97
US5938557AAug 17, 1999
CVT Control System
TOROTRAK DEV LTD58 citations96
US5643121AJul 1, 1997
Continuously-variable-ratio transmissions
TOROTRAK DEV LTD80 citations95
US6030310AFeb 29, 2000
Variator control system
TOROTRAK DEV LTD63 citations94
US7530916B2May 12, 2009
Continuously variable ratio transmission system
TOROTRAK DEV LTD30 citations92
US7407459B2Aug 5, 2008
Continuously variable ratio transmission system
TOROTRAK DEV LTD39 citations92
US7318786B2Jan 15, 2008
Hydraulic control circuit for a variator
TOROTRAK DEV LTD42 citations92
US6626793B1Sep 30, 2003
Hydraulic control circuit for a continuously-variable-transmission
TOROTRAK DEV LTD39 citations92
US6312356B1Nov 6, 2001
Drive mechanism for infinitely variable transmission
TOROTRAK DEV LTD32 citations92
US6071209AJun 6, 2000
Continuously-variable-ratio transmission of the toroidal-race-rolling traction type
TOROTRAK DEV LTD46 citations92
US5820513AOct 13, 1998
Method of controlling vehicular drivelines including a continuously variable transmission
TOROTRAK DEV LTD36 citations92
US7632208B2Dec 15, 2009
Continuously variable transmissions
TOROTRAK DEV LTD28 citations89
US7491149B2Feb 17, 2009
Fluid supply arrangement for a rolling-traction continuously variable ratio transmission unit
TOROTRAK DEV LTD44 citations89
US5971885AOct 26, 1999
Roller assembly
TOROTRAK DEV LTD44 citations89
US7955210B2Jun 7, 2011
Drive mechanism for infinitely variable transmission
TOROTRAK DEV LTD27 citations88
GREENWOOD CHRISTOPHER JOHN
6 patentsUS9102223B2Aug 11, 2015
Energy recovery system for a vehicle driveline
GREENWOOD CHRISTOPHER JOHN16 citations83
US8919464B2Dec 30, 2014
Arrangements for driving and steering of motor vehicles
GREENWOOD CHRISTOPHER JOHN11 citations83
US8157030B2Apr 17, 2012
Driving and steering of motor vehicles
GREENWOOD CHRISTOPHER JOHN14 citations83
US8292772B2Oct 23, 2012
Continuously variable toroidal transmission
GREENWOOD CHRISTOPHER JOHN5 citations62
US8393990B2Mar 12, 2013
Continuously variable transmission
GREENWOOD CHRISTOPHER JOHN4 citations57
US8695734B2Apr 15, 2014
Driving and steering of motor vehicles
GREENWOOD CHRISTOPHER JOHN1 citations51