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Christoph Greger

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  • Delligsen, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Headphone
    • Patent number 10,477,293
    • Issue date Nov 12, 2019
    • Sennheiser electronic GmbH & Co. KG
    • Axel Grell
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Earphone
    • Patent number 8,634,584
    • Issue date Jan 21, 2014
    • Sennheiser Electronic GmbH & Co., KG
    • Christoph Greger
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    Headphone
    • Publication number 20180249237
    • Publication date Aug 30, 2018
    • SENNHEISER ELECTRONIC GMBH & CO. KG
    • Axel Grell
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    EARPHONE
    • Publication number 20130034260
    • Publication date Feb 7, 2013
    • Christoph Greger
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    UNDER-CHIN HEADPHONE SET
    • Publication number 20100284559
    • Publication date Nov 11, 2010
    • Sennheiser electronic GmbH & Co., KG
    • Joachim Scholz
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE