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Hannu Ruokolainen

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  • Ludvika, SE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Externally gapped line arrester
    • Patent number 11,322,913
    • Issue date May 3, 2022
    • Hitachi Energy Switzerland AG
    • Hannu Ruokolainen
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    Externally Gapped Line Arrester
    • Publication number 20200119528
    • Publication date Apr 16, 2020
    • ABB Power Grids Switzerland AG
    • Hannu Ruokolainen
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER