Inventor
GREETHAM STEPHEN
GB21 patents
⚠️ This page may combine multiple inventors who share the name “GREETHAM STEPHEN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DYSON TECHNOLOGY LTD
10 patentsUS7750594B2Jul 6, 2010
Control of electrical machines
DYSON TECHNOLOGY LTD63 citations97
US7701164B2Apr 20, 2010
Control of electrical machines
DYSON TECHNOLOGY LTD31 citations92
US7443125B2Oct 28, 2008
Power conversion apparatus
DYSON TECHNOLOGY LTD28 citations86
US11682914B2Jun 20, 2023
Battery system
DYSON TECHNOLOGY LTD2 citations72
US12476630B2Nov 18, 2025
Gate driver
DYSON TECHNOLOGY LTD0 citations62
US9160255B2Oct 13, 2015
Method of preheating a brushless motor
DYSON TECHNOLOGY LTD3 citations62
US12431804B2Sep 30, 2025
AC-DC buck-boost converter
DYSON TECHNOLOGY LTD0 citations51
US10756653B2Aug 25, 2020
Control of a brushless motor
DYSON TECHNOLOGY LTD0 citations49
US12476568B2Nov 18, 2025
Drive circuit for a brushless motor
DYSON TECHNOLOGY LTD0 citations41
US9859824B2Jan 2, 2018
Drive circuit for a brushless motor having an AC/AC boost converter
DYSON TECHNOLOGY LTD0 citations41
CHEN YU
4 patentsUS9130493B2Sep 8, 2015
Control of a brushless motor
CHEN YU17 citations84
US8933654B2Jan 13, 2015
Control of a brushless motor
CHEN YU17 citations84
US8742707B2Jun 3, 2014
Control of a brushless motor
CHEN YU3 citations62
US8432078B2Apr 30, 2013
Stator with asymmetric poles and sensor oriented to more accurately determine position of rotor
CHEN YU2 citations62
CLOTHIER ANDREW CHARLTON
4 patentsUS8937446B2Jan 20, 2015
Control of a brushless permanent-magnet motor
CLOTHIER ANDREW CHARLTON16 citations83
US8773052B2Jul 8, 2014
Control of a brushless motor
CLOTHIER ANDREW CHARLTON16 citations83
US8648558B2Feb 11, 2014
Control of a brushless motor
CLOTHIER ANDREW CHARLTON15 citations83
US8988021B2Mar 24, 2015
Control of a brushless motor
CLOTHIER ANDREW CHARLTON6 citations67