TREA

Andrew Tiefel

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  • South Lyon, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Canted head-mounted light
    • Patent number 6,877,875
    • Issue date Apr 12, 2005
    • Zen Design Group, LTD
    • Sun Yu
    • F21 - LIGHTING
  • Information Patent Grant

    Ultraviolet light writing system
    • Patent number 6,860,616
    • Issue date Mar 1, 2005
    • IQ Hong Kong, Ltd.
    • Sun Yu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

  • Information Patent Application

    Ultraviolet light writing system
    • Publication number 20050036303
    • Publication date Feb 17, 2005
    • Sun Yu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Canted head-mounted light
    • Publication number 20040085756
    • Publication date May 6, 2004
    • Sun Yu
    • A42 - HEADWEAR
  • Information Patent Application

    Ultraviolet light writing system
    • Publication number 20030112623
    • Publication date Jun 19, 2003
    • Zen Design Group, Ltd.
    • Sun Yu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES