TREA

Michael Craig Krisztal

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  • Los Angeles, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Headphone assembly
    • Patent number 9,609,417
    • Issue date Mar 28, 2017
    • The Ketchum Group
    • Charles Krissman
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Headphone assembly
    • Patent number 9,025,806
    • Issue date May 5, 2015
    • The Ketchum Group
    • Charles Krissman
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Headphone assembly
    • Patent number D704676
    • Issue date May 13, 2014
    • The Ketchum Group, Inc.
    • Michael Craig Krisztal
    • D14 - Recording, communication, or information retrieval equipment

Patents Applicationslast 30 patents

  • Information Patent Application

    HEADPHONE ASSEMBLY
    • Publication number 20160014494
    • Publication date Jan 14, 2016
    • THE KETCHUM GROUP, INC., DBA, OUTDOOR TECHNOLOGY
    • Charles Krissman
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    HEADPHONE ASSEMBLY
    • Publication number 20140193020
    • Publication date Jul 10, 2014
    • The Ketchum Group, Inc., dba, Outdoor Technology
    • Charles Krissman
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE