TREA

Calvin K. MA

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  • Toronto, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Microphone stand mounting brackets
    • Patent number 9,288,563
    • Issue date Mar 15, 2016
    • The TC Group A/S
    • David Kenneth Hilderman
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Microphone stand mounting brackets
    • Patent number 9,179,208
    • Issue date Nov 3, 2015
    • The TC Group A/S
    • David Hilderman
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Microphone stand mounting brackets
    • Patent number 8,718,311
    • Issue date May 6, 2014
    • The TC Group A/S
    • David Kenneth Hilderman
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    MICROPHONE STAND MOUNTING CLIP
    • Publication number 20180128421
    • Publication date May 10, 2018
    • Music Group IP Ltd.
    • David Kenneth Hilderman
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    MICROPHONE STAND MOUNTING BRACKETS
    • Publication number 20140193015
    • Publication date Jul 10, 2014
    • THE TC GROUP A/S
    • David Kenneth HILDERMAN
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    MICROPHONE STAND MOUNTING BRACKETS
    • Publication number 20140050344
    • Publication date Feb 20, 2014
    • David HILDERMAN
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    MICROPHONE STAND MOUNTING BRACKETS
    • Publication number 20140050345
    • Publication date Feb 20, 2014
    • THE TC GROUP A/S
    • David Kenneth HILDERMAN
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE