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Chun Yuen To

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  • Kauto Shan Shatin, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Dental cleaning tool with handle shield
    • Patent number 10,932,557
    • Issue date Mar 2, 2021
    • World Wide Daily Holdings Company Limited
    • Chun Yuen To
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Dental cleaning tool with secondary cleaning tool and integrated sh...
    • Patent number 10,610,338
    • Issue date Apr 7, 2020
    • World Wide Daily Holdings Company Limited
    • Chun Yuen To
    • A46 - BRUSHWARE
  • Information Patent Grant

    Dental cleaning tool with integrated shield
    • Patent number 10,376,346
    • Issue date Aug 13, 2019
    • World Wide Daily Holdings Company Limited
    • Chun Yuen To
    • A46 - BRUSHWARE
  • Information Patent Grant

    Ring for ring binder mechanism
    • Patent number 10,118,431
    • Issue date Nov 6, 2018
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Ring binder with interlocking ring members
    • Patent number 9,895,922
    • Issue date Feb 20, 2018
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Ring binder mechanism
    • Patent number 9,751,356
    • Issue date Sep 5, 2017
    • World Wide Stationery Mfg. Co., Ltd.
    • Jn Biao Pi
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Ring binder mechanism
    • Patent number 9,688,091
    • Issue date Jun 27, 2017
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Ring binder mechanism having snap-in ring members
    • Patent number 9,656,507
    • Issue date May 23, 2017
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Ring binder mechanism having unitary structure
    • Patent number 9,067,457
    • Issue date Jun 30, 2015
    • Cooper Technologies Company
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Ring binder mechanism having retaining system on ring members
    • Patent number 8,899,865
    • Issue date Dec 2, 2014
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Ring binder mechanism having unitary structure
    • Patent number 8,899,864
    • Issue date Dec 2, 2014
    • World Wide Stationery Mfg., Co., Ltd.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Ring binder mechanism having snap-in ring members
    • Patent number 8,851,783
    • Issue date Oct 7, 2014
    • World Wide Stationary Mfg. Co. Ltd.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Ring binder mechanism
    • Patent number 8,801,317
    • Issue date Aug 12, 2014
    • World Wide Stationary Mfg. Co., Ltd.
    • Jn Biao Pi
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Soft close ring binder mechanism with mating ring tips
    • Patent number 8,573,876
    • Issue date Nov 5, 2013
    • World Wide Stationery Manufacturing Company, Limited
    • Hung Yu Cheng
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Ring binder mechanism with polymeric housing and actuator
    • Patent number 8,147,160
    • Issue date Apr 3, 2012
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Ring binder mechanism
    • Patent number 8,047,737
    • Issue date Nov 1, 2011
    • World Wide Stationery Mfg. Co., Ltd.
    • Jn Biao Pi
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Ring binder mechanism with polymeric housing
    • Patent number 7,950,866
    • Issue date May 31, 2011
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Rectilinear binder ring
    • Patent number RE41852
    • Issue date Oct 26, 2010
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • D19 - Office supplies
  • Information Patent Grant

    Ring binder mechanism
    • Patent number 7,819,602
    • Issue date Oct 26, 2010
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Dual lever ring mechanism with rectilinear binder rings
    • Patent number D622316
    • Issue date Aug 24, 2010
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • D19 - Office supplies
  • Information Patent Grant

    Ring binder mechanism
    • Patent number 7,726,897
    • Issue date Jun 1, 2010
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Single lever ring mechanism having rectilinear binder rings
    • Patent number D616934
    • Issue date Jun 1, 2010
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • D19 - Office supplies
  • Information Patent Grant

    Push button ring mechanism having rectilinear binder rings
    • Patent number D616023
    • Issue date May 18, 2010
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • D19 - Office supplies
  • Information Patent Grant

    Ring binder mechanism having blocking device
    • Patent number 7,654,764
    • Issue date Feb 2, 2010
    • World Wide Stationery Mfg. Co. Ltd.
    • Chun On To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Ring binder
    • Patent number 7,637,682
    • Issue date Dec 29, 2009
    • World Wide Stationery Manufacturing Company Limited
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Binding ring
    • Patent number D598494
    • Issue date Aug 18, 2009
    • World Wide Stationery Manufacturing Company Limited
    • Chun Yuen To
    • D19 - Office supplies
  • Information Patent Grant

    Rectilinear binder ring
    • Patent number D585935
    • Issue date Feb 3, 2009
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • D19 - Office supplies
  • Information Patent Grant

    Binding ring
    • Patent number D582477
    • Issue date Dec 9, 2008
    • World Wide Stationery Manufacturing Company Limited
    • Chun Yuen To
    • D19 - Office supplies
  • Information Patent Grant

    Fastening binder ring mechanisms to binders
    • Patent number 7,073,968
    • Issue date Jul 11, 2006
    • World Wide Stationary Manufacturing Company, Ltd.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Ring binder mechanism fastener
    • Patent number D461498
    • Issue date Aug 13, 2002
    • World Wide Stationery Manufacturing Company, Ltd.
    • Chun Yuen To
    • D19 - Office supplies

Patents Applicationslast 30 patents

  • Information Patent Application

    TOOTHBRUSH
    • Publication number 20210219709
    • Publication date Jul 22, 2021
    • WORLD WIDE DAILY HOLDINGS COMPANY LIMITED
    • Chun Yuen TO
    • A46 - BRUSHWARE
  • Information Patent Application

    HAND-HELD HAIR STYLING DEVICE
    • Publication number 20210204668
    • Publication date Jul 8, 2021
    • World Wide Daily Holdings Company Limited
    • Chun Yuen To
    • A46 - BRUSHWARE
  • Information Patent Application

    HAND-HELD HAIR STYLING DEVICE
    • Publication number 20210204669
    • Publication date Jul 8, 2021
    • World Wide Daily Holdings Company Limited
    • Chun Yuen To
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Application

    HANGER BAR
    • Publication number 20210177140
    • Publication date Jun 17, 2021
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    NOTEBOOK HANGER
    • Publication number 20210162796
    • Publication date Jun 3, 2021
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen TO
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    DENTAL CLEANING TOOL WITH ROTATABLE CLEANING INSTRUMENT
    • Publication number 20200197141
    • Publication date Jun 25, 2020
    • World Wide Daily Holdings Company Limited
    • Chun Yuen TO
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    DENTAL CLEANING TOOL INCLUDING AT LEAST ONE MOVEABLE SECONDARY TOOL
    • Publication number 20200030066
    • Publication date Jan 30, 2020
    • World Wide Daily Holdings Company Limited
    • Chun Yuen TO
    • A46 - BRUSHWARE
  • Information Patent Application

    DENTAL CLEANING TOOL WITH SECONDARY CLEANING TOOL AND INTEGRATED SH...
    • Publication number 20190239990
    • Publication date Aug 8, 2019
    • World Wide Daily Holdings Company Limited
    • Chun Yuen TO
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    DENTAL CLEANING TOOL INCLUDING PIVOTABLE BRUSH
    • Publication number 20190209277
    • Publication date Jul 11, 2019
    • World Wide Daily Holdings Company Limited
    • Chun Yuen TO
    • A46 - BRUSHWARE
  • Information Patent Application

    DENTAL CLEANING TOOL INCLUDING AT LEAST ONE MOVEABLE TOOL
    • Publication number 20190105138
    • Publication date Apr 11, 2019
    • World Wide Daily Holdings Company Limited
    • Chun Yuen TO
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    DENTAL CLEANING TOOL WITH HANDLE SHIELD
    • Publication number 20190082821
    • Publication date Mar 21, 2019
    • World Wide Daily Holdings Company Limited
    • Chun Yuen TO
    • A46 - BRUSHWARE
  • Information Patent Application

    DENTAL CLEANING TOOL WITH INTEGRATED SHIELD
    • Publication number 20190083213
    • Publication date Mar 21, 2019
    • World Wide Daily Holdings Company Limited
    • Chun Yuen TO
    • A46 - BRUSHWARE
  • Information Patent Application

    RING BINDER HAVING INTERLOCKING RING TIPS
    • Publication number 20170291446
    • Publication date Oct 12, 2017
    • WORLD WIDE STATIONERY MFG. CO., LTD.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    RING BINDER WITH INTERLOCKING RING MEMBERS
    • Publication number 20160229216
    • Publication date Aug 11, 2016
    • WORLD WIDE STATIONERY MFG. CO., LTD.
    • Chun Yuen TO
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    RING BINDER MECHANISM HAVING UNITARY STRUCTURE
    • Publication number 20150202909
    • Publication date Jul 23, 2015
    • World Wide Stationery Manufacturing Co., Ltd.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    RING BINDER MECHANISM HAVING RETAINING SYSTEM ON RING MEMBERS
    • Publication number 20150003892
    • Publication date Jan 1, 2015
    • WORLD WIDE STATIONERY MANUFACTURING CO., LTD.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    RING BINDER MECHANISM HAVING SNAP-IN RING MEMBERS
    • Publication number 20140369738
    • Publication date Dec 18, 2014
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    RING BINDER MECHANISM
    • Publication number 20140363216
    • Publication date Dec 11, 2014
    • Jn Biao Pi
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    RING BINDER MECHANISM
    • Publication number 20120155948
    • Publication date Jun 21, 2012
    • Chun-Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    RING BINDER MECHANISM
    • Publication number 20120051830
    • Publication date Mar 1, 2012
    • World Wide Stationery Mfg. Co., Ltd.
    • Jn Biao Pi
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    RING BINDER MECHANISM HAVING UNITARY STRUCTURE
    • Publication number 20110311300
    • Publication date Dec 22, 2011
    • WORLD WIDE STATIONERY MANUFACTURING CO., LTD.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    RING BINDER MECHANISM HAVING RETAINING SYSTEM ON RING MEMBERS
    • Publication number 20110311301
    • Publication date Dec 22, 2011
    • WORLD WIDE STATIONERY MANUFACTURING CO., LTD.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    RING BINDER MECHANISM HAVING SNAP-IN RING MEMBERS
    • Publication number 20110311302
    • Publication date Dec 22, 2011
    • WORLD WIDE STATIONERY MANUFACTURING CO., LTD.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    RING BINDER MECHANISM HAVING UNITARY STRUCTURE
    • Publication number 20110305500
    • Publication date Dec 15, 2011
    • WORLD WIDE STATIONERY MANUFACTURING CO., LTD.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    Ring Binder Mechanism
    • Publication number 20100284729
    • Publication date Nov 11, 2010
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    SUPPORT STAND FOR NOTEBOOK
    • Publication number 20090140119
    • Publication date Jun 4, 2009
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    Ring Binder Mechanism with Pen Holder
    • Publication number 20090116896
    • Publication date May 7, 2009
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    RING BINDER MECHANISM
    • Publication number 20090110469
    • Publication date Apr 30, 2009
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    RING BINDER MECHANISM WITH POLYMERIC HOUSING AND ACTUATOR
    • Publication number 20090110470
    • Publication date Apr 30, 2009
    • WORLD WIDE STATIONERY, MFG. CO., LTD.
    • Chun Yuen TO
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    SUPPORT STAND FOR STRUCTURES THAT HOLD PAGES AND METHODS OF USING T...
    • Publication number 20090072113
    • Publication date Mar 19, 2009
    • World Wide Stationery Mfg. Co., Ltd.
    • Chun Yuen To
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER