TREA

Julie Wu Kuei Yao Willey

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  • Palo Alto, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Writing stylus
    • Patent number 7,567,242
    • Issue date Jul 28, 2009
    • LeapFrog Enterprises, Inc.
    • Michael Perkins
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing stylus
    • Patent number 7,224,348
    • Issue date May 29, 2007
    • LeapFrog Enterprises, Inc.
    • Michael Perkins
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing stylus for electrographic position location apparatus
    • Patent number 7,068,262
    • Issue date Jun 27, 2006
    • LeapFrog Enterprises, Inc.
    • Michael Perkins
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

  • Information Patent Application

    WRITING STYLUS
    • Publication number 20080043001
    • Publication date Feb 21, 2008
    • Michael Perkins
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Writing stylus for electrographic position location apparatus
    • Publication number 20040246211
    • Publication date Dec 9, 2004
    • LeapFrog Enterprises, Inc.
    • Michael Perkins
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES