TREA

Chien-Chen Wu

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  • Taichung, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Spring hinge structure
    • Patent number 6,732,408
    • Issue date May 11, 2004
    • Chien-Chen Wu
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Tubular spring hinge assembly
    • Patent number 6,618,902
    • Issue date Sep 16, 2003
    • Chien-Chen Wu
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Spring hinge structure
    • Patent number 6,256,839
    • Issue date Jul 10, 2001
    • Chien-Chen Wu
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Structure of door hinge
    • Patent number 5,606,774
    • Issue date Mar 4, 1997
    • Chien-Cheng Wu
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

  • Information Patent Application

    Positioning cap for hinge assembly
    • Publication number 20070000090
    • Publication date Jan 4, 2007
    • Chien-Chen Wu
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    Tubular spring hinge assembly
    • Publication number 20030051313
    • Publication date Mar 20, 2003
    • Chien-Chen Wu
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    Spring hinge structure
    • Publication number 20030014839
    • Publication date Jan 23, 2003
    • Chien-Chen Wu
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES