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Thomas J. Van Dan Elzen

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  • Coolidge, AZ, US
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    YO-YO HAVING A CHANGEABLE SHAPE
    • Publication number 20120244780
    • Publication date Sep 27, 2012
    • Hans W. Van Dan Elzen
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Application

    MOTORIZED YO-YO HAVING IMPROVED EFFICIENCY
    • Publication number 20110212665
    • Publication date Sep 1, 2011
    • Hans W. Van Dan Elzen
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Application

    YO-YO HAVING QUICKLY-ADJUSTABLE RESPONSIVENESS
    • Publication number 20110009029
    • Publication date Jan 13, 2011
    • Hans W. Van Dan Elzen
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Application

    MOTORIZED YO-YO
    • Publication number 20090075553
    • Publication date Mar 19, 2009
    • Hans W. Van Dan Elzen
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Application

    Motor yo-yo
    • Publication number 20070105478
    • Publication date May 10, 2007
    • Hans W. Van Dan Elzen
    • A63 - SPORTS GAMES AMUSEMENTS