TREA

Ching-Chi Chung

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  • Ping-Tung, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Tube
    • Patent number 8,250,891
    • Issue date Aug 28, 2012
    • Ching-Chi Chung
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

  • Information Patent Application

    Frame Tube for Light-Weighted Bicycle Frame
    • Publication number 20120152397
    • Publication date Jun 21, 2012
    • Ching-Chi Chung
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Application

    TUBE SEAT WITH A FRAME STRUCTURE FOR A BICYCLE
    • Publication number 20100320721
    • Publication date Dec 23, 2010
    • CHING-CHI CHUNG
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Application

    TUBE
    • Publication number 20100288822
    • Publication date Nov 18, 2010
    • CHING-CHI CHUNG
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Hollow-pipe forming apparatus and its products
    • Publication number 20030010811
    • Publication date Jan 16, 2003
    • Ching-Chi Chung
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...