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John Bruce Bowlerwell

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  • Peterhead, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Current estimation in a power converter
    • Patent number 12,199,514
    • Issue date Jan 14, 2025
    • Cirrus Logic Inc.
    • Malcolm Blyth
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Load detection
    • Patent number 12,041,434
    • Issue date Jul 16, 2024
    • Cirrus Logic Inc.
    • John Paul Lesso
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Estimation of an inductance in a power converter
    • Patent number 12,040,710
    • Issue date Jul 16, 2024
    • Cirrus Logic Inc.
    • John B. Bowlerwell
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Audio amplifier circuitry
    • Patent number 11,881,826
    • Issue date Jan 23, 2024
    • Cirrus Logic Inc.
    • David P. Singleton
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Circuitry for detecting jack plug insertion or removal
    • Patent number 11,852,694
    • Issue date Dec 26, 2023
    • Cirrus Logic Inc.
    • John A. Breslin
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Protection circuitry
    • Patent number 11,843,354
    • Issue date Dec 12, 2023
    • Cirrus Logic Inc.
    • Pradeep Saminathan
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Load detection
    • Patent number 11,653,150
    • Issue date May 16, 2023
    • Cirrus Logic, Inc.
    • John Paul Lesso
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Biasing circuitry
    • Patent number 11,500,404
    • Issue date Nov 15, 2022
    • Cirrus Logic, Inc.
    • John B. Bowlerwell
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Socket monitoring
    • Patent number 11,435,412
    • Issue date Sep 6, 2022
    • Cirrus Logic, Inc.
    • John Bruce Bowlerwell
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Circuitry for detecting jack plug removal
    • Patent number 11,362,467
    • Issue date Jun 14, 2022
    • Cirrus Logic, Inc.
    • John Bruce Bowlerwell
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Load detection
    • Patent number 11,206,487
    • Issue date Dec 21, 2021
    • Cirrus Logic, Inc.
    • John Paul Lesso
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Socket monitoring
    • Patent number 10,725,121
    • Issue date Jul 28, 2020
    • Cirrus Logic, Inc.
    • John Bruce Bowlerwell
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Low power bidirectional bus
    • Patent number 10,218,535
    • Issue date Feb 26, 2019
    • Cirrus Logic, Inc.
    • Willem Zwart
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Low power bidirectional bus
    • Patent number 9,935,786
    • Issue date Apr 3, 2018
    • Cirrus Logic, Inc.
    • Willem Zwart
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Charge pump circuits
    • Patent number 8,750,539
    • Issue date Jun 10, 2014
    • Wolfson Microelectronics plc
    • John Laurence Pennock
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

  • Information Patent Application

    CURRENT ESTIMATION IN A POWER CONVERTER
    • Publication number 20240429821
    • Publication date Dec 26, 2024
    • Cirrus Logic International Semiconductor Ltd.
    • Malcolm BLYTH
    • G01 - MEASURING TESTING
  • Information Patent Application

    SYSTEM FOR ESTIMATING POWER DISSIPATION AND/OR EFFICIENCY
    • Publication number 20240288477
    • Publication date Aug 29, 2024
    • Cirrus Logic International Semiconductor Ltd.
    • Alastair M. BOOMER
    • G01 - MEASURING TESTING
  • Information Patent Application

    CONTROL OF BOOST CONVERTER CURRENT LIMIT
    • Publication number 20240266948
    • Publication date Aug 8, 2024
    • Cirrus Logic International Semiconductor Ltd.
    • John B. BOWLERWELL
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    VOLTAGE SUPPLY
    • Publication number 20240154612
    • Publication date May 9, 2024
    • Cirrus Logic International Semiconductor Ltd.
    • Kapil SHARMA
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    AUDIO AMPLIFIER CIRCUITRY
    • Publication number 20240097633
    • Publication date Mar 21, 2024
    • Cirrus Logic International Semiconductor Ltd.
    • David P. SINGLETON
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    CURRENT SENSING
    • Publication number 20240012035
    • Publication date Jan 11, 2024
    • Cirrus Logic International Semiconductor Ltd.
    • Kapil R. SHARMA
    • G01 - MEASURING TESTING
  • Information Patent Application

    POWER CONVERTER CIRCUITRY
    • Publication number 20230344351
    • Publication date Oct 26, 2023
    • Cirrus Logic International Semiconductor Ltd.
    • Alastair M. BOOMER
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    PROTECTION CIRCUITRY
    • Publication number 20230299575
    • Publication date Sep 21, 2023
    • Cirrus Logic International Semiconductor Ltd.
    • David P. SINGLETON
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    LOAD DETECTION
    • Publication number 20230247362
    • Publication date Aug 3, 2023
    • Cirrus Logic International Semiconductor Ltd.
    • John Paul LESSO
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    ESTIMATION OF AN INDUCTANCE IN A POWER CONVERTER
    • Publication number 20230198396
    • Publication date Jun 22, 2023
    • Cirrus Logic International Semiconductor Ltd.
    • John B. BOWLERWELL
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    LOAD DETECTION
    • Publication number 20220060832
    • Publication date Feb 24, 2022
    • Cirrus Logic International Semiconductor Ltd.
    • John Paul LESSO
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    PROTECTION CIRCUITRY
    • Publication number 20210399691
    • Publication date Dec 23, 2021
    • Cirrus Logic International Semiconductor Ltd.
    • Pradeep SAMINATHAN
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CIRCUITRY FOR PROVIDING AN OUTPUT VOLTAGE
    • Publication number 20210351753
    • Publication date Nov 11, 2021
    • Cirrus Logic International Semiconductor Ltd.
    • John B. BOWLERWELL
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    AUDIO AMPLIFIER CIRCUITRY
    • Publication number 20210242847
    • Publication date Aug 5, 2021
    • Cirrus Logic International Semiconductor Ltd.
    • David P. SINGLETON
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    BIASING CIRCUITRY
    • Publication number 20210232165
    • Publication date Jul 29, 2021
    • Cirrus Logic International Semiconductor Ltd.
    • John B. BOWLERWELL
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    CIRCUITRY FOR DETECTING JACK PLUG REMOVAL
    • Publication number 20210167557
    • Publication date Jun 3, 2021
    • Cirrus Logic International Semiconductor Ltd.
    • John Bruce BOWLERWELL
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    CIRCUITRY FOR DETECTING JACK PLUG INSERTION OR REMOVAL
    • Publication number 20210165055
    • Publication date Jun 3, 2021
    • Cirrus Logic International Semiconductor Ltd.
    • John A. BRESLIN
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SOCKET MONITORING
    • Publication number 20200309865
    • Publication date Oct 1, 2020
    • Cirrus Logic International Semiconductor Ltd.
    • John Bruce BOWLERWELL
    • G01 - MEASURING TESTING
  • Information Patent Application

    LOAD DETECTION
    • Publication number 20200186927
    • Publication date Jun 11, 2020
    • Cirrus Logic International Semiconductor Ltd.
    • John Paul LESSO
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    SOCKET MONITORING
    • Publication number 20190128949
    • Publication date May 2, 2019
    • Cirrus Logic International Semiconductor Ltd.
    • John Bruce BOWLERWELL
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    LOW POWER BIDIRECTIONAL BUS
    • Publication number 20180176034
    • Publication date Jun 21, 2018
    • Cirrus Logic International Semiconductor Ltd.
    • Willem ZWART
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    LOW POWER BIDIRECTIONAL BUS
    • Publication number 20160269193
    • Publication date Sep 15, 2016
    • Cirrus Logic International Semiconductor Ltd.
    • Willem ZWART
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    CHARGE PUMP CIRCUITS
    • Publication number 20100166229
    • Publication date Jul 1, 2010
    • John Laurence Pennock
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER