TREA

Cho-Kai Hu

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  • Shin-Tien, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pressure sensed ink-filled pen
    • Patent number 6,575,650
    • Issue date Jun 10, 2003
    • Pro Eton Corporation
    • Cho-Kai Hu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pen
    • Patent number D471588
    • Issue date Mar 11, 2003
    • Pro Eton Corporation
    • Cho-Kai Hu
    • D19 - Office supplies
  • Information Patent Grant

    Touch-sensitive screen stylus
    • Patent number D465806
    • Issue date Nov 19, 2002
    • Pro Eton Corporation
    • Cho-Kai Hu
    • D19 - Office supplies
  • Information Patent Grant

    Touch-sensitive screen stylus
    • Patent number D465805
    • Issue date Nov 19, 2002
    • Pro Eton Corporation
    • Cho-Kai Hu
    • D19 - Office supplies
  • Information Patent Grant

    Highlighter
    • Patent number D455175
    • Issue date Apr 2, 2002
    • Pro Eton Corporation
    • Cho-Kai Hu
    • D19 - Office supplies
  • Information Patent Grant

    Correcting fluid dispenser
    • Patent number D455176
    • Issue date Apr 2, 2002
    • Pro Eton Corporation
    • Cho-Kai Hu
    • D19 - Office supplies
  • Information Patent Grant

    Ink chamber pressure enhancing control
    • Patent number 6,102,601
    • Issue date Aug 15, 2000
    • Pro Eton Corporation
    • Cho-Kai HU
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing instrument
    • Patent number D424110
    • Issue date May 2, 2000
    • Pro Eton Corporation
    • Cho-Kai Hu
    • D19 - Office supplies
  • Information Patent Grant

    Pen cap with pressure relief means
    • Patent number 5,975,783
    • Issue date Nov 2, 1999
    • Pro Eton Corporation
    • Cho-Kai HU
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents