TREA

Chang-Tzu Chen

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  • Taipei, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Disposable safety injection apparatus
    • Patent number 8,105,276
    • Issue date Jan 31, 2012
    • Chang-Tzu Chen
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Safety hypodermic syringe
    • Patent number 7,621,888
    • Issue date Nov 24, 2009
    • Chang-Tzu Chen
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Syringe protective structure
    • Patent number 6,908,450
    • Issue date Jun 21, 2005
    • Chang-Tzu Chen
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents