TREA

John Zipfel

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  • San Francisco, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Transformerless power conversion
    • Patent number 10,727,673
    • Issue date Jul 28, 2020
    • Google LLC
    • Sangsun Kim
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Transformerless power conversion
    • Patent number 10,439,399
    • Issue date Oct 8, 2019
    • Google LLC
    • Sangsun Kim
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Transformerless power conversion
    • Patent number 9,997,917
    • Issue date Jun 12, 2018
    • Google LLC
    • Sangsun Kim
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

  • Information Patent Application

    TRANSFORMERLESS POWER CONVERSION
    • Publication number 20190379207
    • Publication date Dec 12, 2019
    • Google LLC
    • Sangsun Kim
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    TRANSFORMERLESS POWER CONVERSION
    • Publication number 20180248377
    • Publication date Aug 30, 2018
    • Google LLC
    • Sangsun Kim
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    TRANSFORMERLESS POWER CONVERSION
    • Publication number 20170005471
    • Publication date Jan 5, 2017
    • Google Inc.
    • Sangsun Kim
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER