TREA

Kurt Hasselfeldt

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  • Plymouth, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Wireless phone-interface device
    • Patent number 7,248,157
    • Issue date Jul 24, 2007
    • Interactive Technologies, Inc.
    • John Todd Bergman
    • G08 - SIGNALLING
  • Information Patent Grant

    Wireless phone-interface device
    • Patent number 7,054,414
    • Issue date May 30, 2006
    • Interactive Technologies Inc.
    • John Todd Bergman
    • G08 - SIGNALLING

Patents Applicationslast 30 patents

  • Information Patent Application

    Wireless phone-interface device
    • Publication number 20020163430
    • Publication date Nov 7, 2002
    • John Todd Bergman
    • G08 - SIGNALLING
  • Information Patent Application

    Wireless phone-interface device
    • Publication number 20020163997
    • Publication date Nov 7, 2002
    • John Todd Bergman
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE