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Steven Shih-Yi Chang

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  • Hsinchu, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Water treatment system combining ozone injection and monitoring app...
    • Patent number 6,685,825
    • Issue date Feb 3, 2004
    • Senno Technology Inc.
    • Steven Chang
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Transmission assembly for a ceiling-mounted TV support
    • Patent number 6,647,819
    • Issue date Nov 18, 2003
    • Punch Video, Inc.
    • Steven Chang
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Overhead TV screen in combination with a DVD player
    • Patent number D468711
    • Issue date Jan 14, 2003
    • Punch Video, Inc.
    • Steven Chang
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Hand-held LCD television
    • Patent number D468276
    • Issue date Jan 7, 2003
    • Punch Video Inc.
    • Steven Chang
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Garden tool combination
    • Patent number D387636
    • Issue date Dec 16, 1997
    • Steven Chang
    • D08 - Tools and hardware
  • Information Patent Grant

    Figurine
    • Patent number D387008
    • Issue date Dec 2, 1997
    • Steven Chang
    • D11 - Jewelry, symbolic insignia, and ornaments
  • Information Patent Grant

    Figurine
    • Patent number D387007
    • Issue date Dec 2, 1997
    • Steven Chang
    • D11 - Jewelry, symbolic insignia, and ornaments
  • Information Patent Grant

    Candlestick
    • Patent number D385981
    • Issue date Nov 4, 1997
    • Steven Chang
    • D26 - Lighting

Patents Applicationslast 30 patents