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Andre Grandt

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  • Wedemark, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Headset and headphone
    • Patent number 10,141,494
    • Issue date Nov 27, 2018
    • Sennheiser electronic GmbH & Co. KG
    • Jan Peter Kuhtz
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    Headphones
    • Patent number 9,900,683
    • Issue date Feb 20, 2018
    • Sennheiser electronic GmbH & Co. KG
    • Elmar Stein (né Schulze)
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Earpiece and headset
    • Patent number 9,781,501
    • Issue date Oct 3, 2017
    • Sennheiser electronic GmbH & Co. KG
    • André Grandt
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Headset and headphone
    • Patent number 9,373,317
    • Issue date Jun 21, 2016
    • Sennheiser electronic GmbH & Co. KG
    • Martin Streitenberger
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Helmet and apparatus for active noise suppression
    • Patent number 8,391,530
    • Issue date Mar 5, 2013
    • Sennheiser electronic GmbH & Co. KG
    • Andre Grandt
    • A42 - HEADWEAR
  • Information Patent Grant

    Headphones for connection to an external active noise compensation...
    • Patent number 8,243,942
    • Issue date Aug 14, 2012
    • Sennheiser electronic GmbH & Co. KG
    • André Grandt
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Converter system for an active noise compensation apparatus
    • Patent number 8,180,092
    • Issue date May 15, 2012
    • Sennheiser electronic GmbH & Co. KG
    • Axel Grell
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

  • Information Patent Application

    HIFI AUDIO TUBE AMPLIFIER
    • Publication number 20170085227
    • Publication date Mar 23, 2017
    • SENNHEISER ELECTRONIC GMBH & CO. KG
    • Dirk Krätzer
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    HEADPHONES
    • Publication number 20160286320
    • Publication date Sep 29, 2016
    • Sennheiser electronic GmbH & Co., KG
    • Elmar Stein (né Schulze)
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Handset or Headset
    • Publication number 20160014495
    • Publication date Jan 14, 2016
    • SENNHEISER ELECTRONIC GMBH & CO. KG
    • André GRANDT
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    HEADSET AND HEADPHONE
    • Publication number 20130322642
    • Publication date Dec 5, 2013
    • Martin Streitenberger
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    HEADSET AND HEADPHONE
    • Publication number 20120140941
    • Publication date Jun 7, 2012
    • Sennheiser Electronic GMBH & Co. KG
    • Jan Peter Kuhtz
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    HELMET AND APPARATUS FOR ACTIVE NOISE SUPPRESSION
    • Publication number 20100183182
    • Publication date Jul 22, 2010
    • Andre Grandt
    • A42 - HEADWEAR
  • Information Patent Application

    Converter System for an Active Noise Compensation Apparatus
    • Publication number 20090136055
    • Publication date May 28, 2009
    • Axel Grell
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    Headphones for Connection to an External Active Noise Compensation...
    • Publication number 20090041259
    • Publication date Feb 12, 2009
    • Andre Grandt
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE