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David Karlén

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  • Vasteras, SE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Splitter plate, arc extinguishing chamber and switching device
    • Patent number 11,574,783
    • Issue date Feb 7, 2023
    • ABB Schweiz AG
    • Alfred Nilsson
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Switching device
    • Patent number 10,347,436
    • Issue date Jul 9, 2019
    • ABB Schweiz AG
    • Gunnar Johansson
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Electrical contact tip for switching applications and an electrical...
    • Patent number 9,928,971
    • Issue date Mar 27, 2018
    • ABB Schweiz AG
    • Gunnar Johansson
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Contactor
    • Patent number D788714
    • Issue date Jun 6, 2017
    • ABB Schweiz AG
    • David Karlen
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Contactor
    • Patent number D781242
    • Issue date Mar 14, 2017
    • ABB Schweiz AG
    • David Karlen
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Contactor
    • Patent number D781243
    • Issue date Mar 14, 2017
    • ABB Schweiz AG
    • David Karlen
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Contactor
    • Patent number D780698
    • Issue date Mar 7, 2017
    • ABB Schweiz AG
    • David Karlen
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Electrical circuit switch with variable gear ratio
    • Patent number 9,455,098
    • Issue date Sep 27, 2016
    • ABB Schweiz AG
    • Bjorn Lunden
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Switching device
    • Patent number 9,324,519
    • Issue date Apr 26, 2016
    • ABB Technology Ltd.
    • David Karlen
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Contactor
    • Patent number 8,742,875
    • Issue date Jun 3, 2014
    • ABB AB
    • Anders Eriksson
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Switching device
    • Patent number 8,314,670
    • Issue date Nov 20, 2012
    • ABB AB
    • Mats Johansson
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents