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Stephen Greetham

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  • Edge South Gloucestershire, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Battery system
    • Patent number 11,682,914
    • Issue date Jun 20, 2023
    • Dyson Technology Limited
    • Stephen Greetham
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Control of a brushless motor
    • Patent number 10,756,653
    • Issue date Aug 25, 2020
    • Dyson Technology Limited
    • Stephen Greetham
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Drive circuit for a brushless motor having an AC/AC boost converter
    • Patent number 9,859,824
    • Issue date Jan 2, 2018
    • Dyson Technology Limited
    • Stephen Greetham
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Stator core
    • Patent number 9,564,778
    • Issue date Feb 7, 2017
    • Dyson Technologies Limited
    • Howard Charles Fulford
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Unidirectional electric machine comprising a permanent magnet rotor...
    • Patent number 9,369,011
    • Issue date Jun 14, 2016
    • Dyson Technology Limited
    • Stephen Greetham
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Method of preheating a brushless motor
    • Patent number 9,160,255
    • Issue date Oct 13, 2015
    • Dyson Technology Limited
    • Stephen Greetham
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Control of a brushless motor
    • Patent number 9,130,493
    • Issue date Sep 8, 2015
    • Dyson Technology Limited
    • Yu Chen
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Control of a brushless motor
    • Patent number 9,065,367
    • Issue date Jun 23, 2015
    • Dyson Technology Limited
    • Stephen Greetham
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Control of a brushless motor
    • Patent number 8,988,021
    • Issue date Mar 24, 2015
    • Dyson Technology Limited
    • Andrew Charlton Clothier
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Control of a brushless permanent-magnet motor
    • Patent number 8,937,446
    • Issue date Jan 20, 2015
    • Dyson Technology Limited
    • Andrew Charlton Clothier
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Control of a brushless motor
    • Patent number 8,933,654
    • Issue date Jan 13, 2015
    • Dyson Technology Limited
    • Yu Chen
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Control of a brushless motor
    • Patent number 8,773,052
    • Issue date Jul 8, 2014
    • Dyson Technology Limited
    • Andrew Charlton Clothier
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Control of a brushless motor
    • Patent number 8,742,707
    • Issue date Jun 3, 2014
    • Dyson Technology Limited
    • Yu Chen
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Control of a brushless motor
    • Patent number 8,648,558
    • Issue date Feb 11, 2014
    • Dyson Technology Limited
    • Andrew Charlton Clothier
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Stator with asymmetric poles and sensor oriented to more accurately...
    • Patent number 8,432,078
    • Issue date Apr 30, 2013
    • Dyson Technology Limited
    • Yu Chen
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Control of electrical machines
    • Patent number 7,750,594
    • Issue date Jul 6, 2010
    • Dyson Technology Limited
    • Andrew Charlton Clothier
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Control of electrical machines
    • Patent number 7,701,164
    • Issue date Apr 20, 2010
    • Dyson Technology Limited
    • Andrew Charlton Clothier
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Power conversion apparatus
    • Patent number 7,443,125
    • Issue date Oct 28, 2008
    • Dyson Technology Limited
    • Andrew Charlton Clothier
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

  • Information Patent Application

    BUCK-BOOST CONVERTER
    • Publication number 20240006997
    • Publication date Jan 4, 2024
    • Dyson Technology Limited
    • Stephen GREETHAM
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    GATE DRIVER
    • Publication number 20240007096
    • Publication date Jan 4, 2024
    • Dyson Technology Limited
    • Stephen GREETHAM
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    DRIVE CIRCUIT FOR A BRUSHLESS MOTOR
    • Publication number 20230421085
    • Publication date Dec 28, 2023
    • Dyson Technology Limited
    • Stephen GREETHAM
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    RESISTIVE LIQUID HEATER
    • Publication number 20230337334
    • Publication date Oct 19, 2023
    • Dyson Technology Limited
    • Stephen GREETHAM
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Application

    RESISTIVE LIQUID HEATER
    • Publication number 20230243552
    • Publication date Aug 3, 2023
    • Dyson Technology Limited
    • Stephen GREETHAM
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Application

    RESISTIVE LIQUID HEATER
    • Publication number 20230221037
    • Publication date Jul 13, 2023
    • Dyson Technology Limited
    • Stephen GREETHAM
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Application

    BATTERY SYSTEM
    • Publication number 20190288528
    • Publication date Sep 19, 2019
    • Dyson Technology Limited
    • Stephen GREETHAM
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    POWER SUPPLY
    • Publication number 20180323721
    • Publication date Nov 8, 2018
    • Dyson Technology Limited
    • Stephen GREETHAM
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    BATTERY CHARGER
    • Publication number 20180219474
    • Publication date Aug 2, 2018
    • Dyson Technology Limited
    • Stephen GREETHAM
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    VACUUM CLEANER HAVING A DUAL POWER SUPPLY
    • Publication number 20180199782
    • Publication date Jul 19, 2018
    • Dyson Technology Limited
    • Stephen GREETHAM
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    BATTERY CHARGER
    • Publication number 20180205313
    • Publication date Jul 19, 2018
    • Dyson Technology Limited
    • Stephen GREETHAM
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    BATTERY CHARGER
    • Publication number 20180198366
    • Publication date Jul 12, 2018
    • Dyson Technology Limited
    • Stephen GREETHAM
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    DRIVE CIRCUIT FOR A BRUSHLESS MOTOR HAVING AN AC/AC BOOST CONVERTER
    • Publication number 20160261214
    • Publication date Sep 8, 2016
    • Dyson Technology Limited
    • Stephen GREETHAM
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    DRIVE CIRCUIT FOR A BRUSHLESS MOTOR (as amended)
    • Publication number 20160028334
    • Publication date Jan 28, 2016
    • Dyson Technology Limited
    • Stephen GREETHAM
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    STATOR FOR AN ELECTRICAL MACHINE
    • Publication number 20140319955
    • Publication date Oct 30, 2014
    • Dyson Technology Limited
    • Mark Edward Leaver
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    STATOR FOR AN ELECTRICAL MACHINE
    • Publication number 20140246942
    • Publication date Sep 4, 2014
    • Dyson Technology Limited
    • Stephen Greetham
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CONTROL OF A BRUSHLESS MOTOR
    • Publication number 20140009095
    • Publication date Jan 9, 2014
    • Stephen GREETHAM
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    METHOD OF PREHEATING A BRUSHLESS MOTOR
    • Publication number 20140009099
    • Publication date Jan 9, 2014
    • Stephen GREETHAM
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CONTROL OF A BRUSHLESS MOTOR
    • Publication number 20110254476
    • Publication date Oct 20, 2011
    • Dyson Technology Limited
    • Andrew Charlton Clothier
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CONTROL OF A BRUSHLESS MOTOR
    • Publication number 20110254485
    • Publication date Oct 20, 2011
    • Dyson Technology Limited
    • Andrew Charlton Clothier
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CONTROL OF A BRUSHLESS MOTOR
    • Publication number 20110254487
    • Publication date Oct 20, 2011
    • Dyson Technology Limited
    • Andrew Charlton CLOTHIER
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CONTROL OF A BRUSHLESS PERMANENT-MAGNET MOTOR
    • Publication number 20110254488
    • Publication date Oct 20, 2011
    • Dyson Technology Limited
    • Andrew Charlton Clothier
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CONTROL OF A BRUSHLESS MOTOR
    • Publication number 20110254480
    • Publication date Oct 20, 2011
    • Dyson Technology Limited
    • Yu CHEN
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CONTROL OF A BRUSHLESS MOTOR
    • Publication number 20110254489
    • Publication date Oct 20, 2011
    • Dyson Technology Limited
    • Stephen GREETHAM
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CONTROL OF A BRUSHLESS MOTOR
    • Publication number 20110254481
    • Publication date Oct 20, 2011
    • Dyson Technology Limited
    • Yu CHEN
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CONTROL OF A BRUSHLESS MOTOR
    • Publication number 20110254483
    • Publication date Oct 20, 2011
    • Dyson Technology Limited
    • Yu CHEN
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    ELECTRIC MACHINE
    • Publication number 20100225196
    • Publication date Sep 9, 2010
    • Dyson Technology Limited
    • Stephen GREETHAM
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    STATOR CORE
    • Publication number 20100225197
    • Publication date Sep 9, 2010
    • Dyson Technology Limited
    • Howard Charles Fulford
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    ELECTRIC MACHINE
    • Publication number 20100225207
    • Publication date Sep 9, 2010
    • Dyson Technology Limited
    • Yu CHEN
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    ROTOR ASSEMBLY
    • Publication number 20100215491
    • Publication date Aug 26, 2010
    • Dyson Technology Limited
    • Richard Iain Mockridge
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...