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Leo Lai

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  • Guangdong Province, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Mechanical composite lock
    • Patent number 10,041,274
    • Issue date Aug 7, 2018
    • Yifeng Manufacturing Co., Ltd.
    • Leo Lai
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Lockset
    • Patent number 9,845,616
    • Issue date Dec 19, 2017
    • YIFENG MANUFACTURING CO., LTD.
    • Leo Lai
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Lock
    • Patent number 9,809,998
    • Issue date Nov 7, 2017
    • YIFENG MANUFACTURING CO., LTD.
    • Leo Lai
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Code combination lock
    • Patent number 9,714,526
    • Issue date Jul 25, 2017
    • YIFENG MANUFACTURING CO., LTD.
    • Leo Lai
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Composite coded lock for a bag
    • Patent number 8,943,862
    • Issue date Feb 3, 2015
    • Yifeng Manufacturing Co., Ltd.
    • Leo Lai
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

  • Information Patent Application

    SUITCASE COMBINATION LOCK
    • Publication number 20200011086
    • Publication date Jan 9, 2020
    • YIFENG MANUFACTURING CO.,LTD.
    • Leo LAI
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    THIN PADLOCK WITH SIMPLE AND CONVENINENT OPERATION
    • Publication number 20190085598
    • Publication date Mar 21, 2019
    • YIFENG MANUFACTURING CO., LTD.
    • Leo LAI
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    LOCKSET
    • Publication number 20170306650
    • Publication date Oct 26, 2017
    • YIFENG MANUFACTURING CO., LTD.
    • Leo LAI
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    A Simple Mechanical Lock
    • Publication number 20160356063
    • Publication date Dec 8, 2016
    • Yifeng Manufacturing Co., Ltd.
    • Leo LAI
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    A Luggage Fixing Lock
    • Publication number 20160290014
    • Publication date Oct 6, 2016
    • YIFENG MANUFACTURING CO.,LTD.
    • Leo LAI
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    A CODE COMBINATION LOCK
    • Publication number 20160290008
    • Publication date Oct 6, 2016
    • YIFENG MANUFACTURING CO.,LTD.
    • Leo LAI
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    A Lock
    • Publication number 20160222697
    • Publication date Aug 4, 2016
    • YIFENG MANUFACTURING CO., LTD.
    • Leo LAI
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    A Mechanical Composite Lock
    • Publication number 20160215523
    • Publication date Jul 28, 2016
    • YIFENG MANUFACTURING CO.,LTD.
    • Leo LAI
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    CODED LOCK
    • Publication number 20150330104
    • Publication date Nov 19, 2015
    • YIFENG MANUFACTURING CO., LTD.
    • Leo LAI
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    KEY CODED LOCK
    • Publication number 20140250952
    • Publication date Sep 11, 2014
    • Leo Lai
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    COMPOSITE CODED LOCK FOR A BAG
    • Publication number 20140033775
    • Publication date Feb 6, 2014
    • Leo LAI
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    INSERT BUCKLE HEAD AND INSERT BUCKLE
    • Publication number 20120073096
    • Publication date Mar 29, 2012
    • YIFENG MANUFACTURING CO., LTD.
    • Leo Lai
    • A44 - HABERDASHERY JEWELLERY
  • Information Patent Application

    FIXED CODED LOCK
    • Publication number 20110138867
    • Publication date Jun 16, 2011
    • Leo Lai
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES