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Roger C.Y. Chung

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  • Taipei Hsien, TW
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    WATERPROOF OPEN-END ZIPPER
    • Publication number 20170208907
    • Publication date Jul 27, 2017
    • Roger C. Y. Chung
    • A44 - HABERDASHERY JEWELLERY
  • Information Patent Application

    SNAP BUTTON ZIPPER
    • Publication number 20160183640
    • Publication date Jun 30, 2016
    • Roger C. Y. Chung
    • A44 - HABERDASHERY JEWELLERY
  • Information Patent Application

    ZIPPER WITH STAMPED METAL ZIPPER TEETH
    • Publication number 20160015133
    • Publication date Jan 21, 2016
    • Roger C. Y. Chung
    • A44 - HABERDASHERY JEWELLERY
  • Information Patent Application

    HANGING BELT
    • Publication number 20150150358
    • Publication date Jun 4, 2015
    • Roger C. Y. Chung
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Application

    WATERPROOF DUAL-TRACK ZIPPER
    • Publication number 20140366336
    • Publication date Dec 18, 2014
    • Roger C.Y. Chung
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Application

    DOUBLE-LAYER NYLON ZIPPER
    • Publication number 20130340213
    • Publication date Dec 26, 2013
    • Roger C.Y. Chung
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Application

    Zipper
    • Publication number 20090113676
    • Publication date May 7, 2009
    • Roger C.Y. Chung
    • A44 - HABERDASHERY JEWELLERY
  • Information Patent Application

    Invisible zipper having ornamental slider bodies
    • Publication number 20050268438
    • Publication date Dec 8, 2005
    • Roger C.Y. Chung
    • A44 - HABERDASHERY JEWELLERY