TREA

Chun Y. To

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  • Kowloon, HK
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ring binder mechanism
    • Patent number 7,360,962
    • Issue date Apr 22, 2008
    • World Wide Stationery Manufacturing Company Limited
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Ring binder mechanism
    • Patent number 6,758,621
    • Issue date Jul 6, 2004
    • World Wide Stationery Manufacturing Company, Ltd.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Ring binder housing cover
    • Patent number D473897
    • Issue date Apr 29, 2003
    • World Wide Stationery Manufacturing Company Limited
    • Chun Yuen To
    • D19 - Office supplies
  • Information Patent Grant

    Ring binder having actuating lever with cushion member
    • Patent number 6,536,980
    • Issue date Mar 25, 2003
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Ring binder having actuating lever with cushion member
    • Patent number 6,533,486
    • Issue date Mar 18, 2003
    • World Wide Stationary Mfg. Co., Ltd.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Ring binder housing cover
    • Patent number D468351
    • Issue date Jan 7, 2003
    • World Wide Stationery Manufacturing Company Limited
    • Chun Yuen To
    • D19 - Office supplies
  • Information Patent Grant

    Ring binder mechanism fastener
    • Patent number D466153
    • Issue date Nov 26, 2002
    • World Wide Stationery Manufacturing Company, Ltd.
    • Chun Yuen To
    • D19 - Office supplies
  • Information Patent Grant

    Ring binder having actuating lever with cushion member
    • Patent number 6,474,897
    • Issue date Nov 5, 2002
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Ring binder having actuating lever with cushion member
    • Patent number 6,467,984
    • Issue date Oct 22, 2002
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Ring binder housing cover
    • Patent number D461497
    • Issue date Aug 13, 2002
    • World Wide Stationery Manufacturing Company Limited
    • Chun Yuen To
    • D19 - Office supplies
  • Information Patent Grant

    Housing for a ring binder mechanism
    • Patent number D460109
    • Issue date Jul 9, 2002
    • World Wide Stationery Manufacturing Company Ltd.
    • Chun Yuen To
    • D19 - Office supplies
  • Information Patent Grant

    Ring binder
    • Patent number D457559
    • Issue date May 21, 2002
    • World Wide Stationery Manufacturing Company, Ltd.
    • Chun Yuen To
    • D19 - Office supplies
  • Information Patent Grant

    Ring binder having actuating lever with cushion member
    • Patent number 6,364,558
    • Issue date Apr 2, 2002
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Ring binder
    • Patent number D453026
    • Issue date Jan 22, 2002
    • World Wide Stationery Manufacturing Company, Ltd.
    • Chun Yuen To
    • D19 - Office supplies
  • Information Patent Grant

    Ring mechanism for a binder having a plastic top section
    • Patent number 6,328,497
    • Issue date Dec 11, 2001
    • World Wide Stationery Manufacturing Co., Ltd.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Ring binder having actuating lever with cushion member
    • Patent number 6,280,114
    • Issue date Aug 28, 2001
    • World Wide Stationary Mfg., Co., Ltd.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Corrugated ring binder housing
    • Patent number D442223
    • Issue date May 15, 2001
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • D19 - Office supplies
  • Information Patent Grant

    Partially corrugated ring binder housing
    • Patent number D441789
    • Issue date May 8, 2001
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • D19 - Office supplies
  • Information Patent Grant

    Ring binder
    • Patent number 6,168,339
    • Issue date Jan 2, 2001
    • World Wide Stationery Manufacturing Company Limited
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Ring binder
    • Patent number D434071
    • Issue date Nov 21, 2000
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • D19 - Office supplies
  • Information Patent Grant

    Ring binder
    • Patent number D433445
    • Issue date Nov 7, 2000
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • D19 - Office supplies
  • Information Patent Grant

    Ring binder
    • Patent number D430898
    • Issue date Sep 12, 2000
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • D19 - Office supplies
  • Information Patent Grant

    Ring binder
    • Patent number D426571
    • Issue date Jun 13, 2000
    • World Wide Stationery Mfg., Co., Ltd.
    • Chun Yuen To
    • D19 - Office supplies
  • Information Patent Grant

    Ring binder mechanism
    • Patent number 6,033,144
    • Issue date Mar 7, 2000
    • World Wide Stationary Mfg. Co., Ltd.
    • Weng Io Ng
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Fastener for a ring binder and method of producing a binder assembly
    • Patent number 6,007,266
    • Issue date Dec 28, 1999
    • World Wide Stationery Manufacturing Co., Ltd.
    • Hung Yu Cheng
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Ring binder mechanism
    • Patent number 5,971,649
    • Issue date Oct 26, 1999
    • World Wide Stationery Manufacturing Co. Ltd.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Assembling and disassembling device for ring binders
    • Patent number 5,924,811
    • Issue date Jul 20, 1999
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Ring binder
    • Patent number 5,846,013
    • Issue date Dec 8, 1998
    • World Wide Stationery Manufacturing Company Limited
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Ring binder
    • Patent number 5,842,807
    • Issue date Dec 1, 1998
    • World Wide Stationery Manufacturing Company Limited
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Ring binder
    • Patent number 5,755,513
    • Issue date May 26, 1998
    • World Wide Stationary Manufacturing Company Limited
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER

Patents Applicationslast 30 patents

  • Information Patent Application

    RING BINDER MECHANISM
    • Publication number 20140086664
    • Publication date Mar 27, 2014
    • Chun Yuen TO
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    RING BINDER MECHANISM
    • Publication number 20110299914
    • Publication date Dec 8, 2011
    • Chun Yuen TO
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    LEVER-ARCH TYPE FILE MECHANISM
    • Publication number 20090041531
    • Publication date Feb 12, 2009
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    LEVER-ARCH TYPE FILE MECHANISM
    • Publication number 20080166179
    • Publication date Jul 10, 2008
    • Xi Tao DENG
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    RING BINDER MECHANISM HAVING PLASTIC HOUSING
    • Publication number 20080085145
    • Publication date Apr 10, 2008
    • WORLD WIDE STATIONERY MANUFACTURING COMPANY LIMITED
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    Ring binder mechanism
    • Publication number 20040013463
    • Publication date Jan 22, 2004
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    Housing for a ring binder mechanism and a ring binder formed of same
    • Publication number 20030113156
    • Publication date Jun 19, 2003
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    Ring binder ring locking
    • Publication number 20030103796
    • Publication date Jun 5, 2003
    • World Wide Stationery Manufacturing Company, Limited
    • Chun On To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    Ring binder mechanism
    • Publication number 20030026643
    • Publication date Feb 6, 2003
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    Ring Binder mechanism
    • Publication number 20020051674
    • Publication date May 2, 2002
    • World Wide Stationery Manufacturing Co. Limited
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    Ring binder having actuating lever with cushion member
    • Publication number 20010026726
    • Publication date Oct 4, 2001
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER