Chul-Ho MAENG

Person

  • Anyang-si, KR

Patents Grantslast 30 patents

  • Information Patent Grant

    Latch structure

    • Patent number 11,781,346
    • Issue date Oct 10, 2023
    • ZIGBANG CO., LTD.
    • Chul Ho Maeng
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Apparatus for detecting opening and closing of door

    • Patent number 9,580,933
    • Issue date Feb 28, 2017
    • SAMSUNG SDS CO., LTD.
    • Chul-Ho Maeng
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Door mortise lock

    • Patent number 9,284,750
    • Issue date Mar 15, 2016
    • SAMSUNG SDS CO., LTD.
    • Chul-Ho Maeng
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

  • Information Patent Application

    LATCH STRUCTURE

    • Publication number 20220349213
    • Publication date Nov 3, 2022
    • SAMSUNG SDS CO., LTD.
    • Chul Ho MAENG
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    DIGITAL DOOR LOCK INCLUDING LATCH BOLT SELF-LOOSENING STRUCTURE

    • Publication number 20190112835
    • Publication date Apr 18, 2019
    • SAMSUNG SDS CO., LTD.
    • Seong-Jong YOO
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    DOOR LOCKING DEVICE

    • Publication number 20180010367
    • Publication date Jan 11, 2018
    • SAMSUNG SDS CO., LTD.
    • Chul-Ho MAENG
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    MORTISE DEVICE

    • Publication number 20170306654
    • Publication date Oct 26, 2017
    • SAMSUNG SDS CO., LTD.
    • Chul Ho MAENG
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    APPARATUS FOR DETECTING OPENING AND CLOSING OF DOOR

    • Publication number 20160115712
    • Publication date Apr 28, 2016
    • SAMSUNG SDS CO., LTD.
    • Chul-Ho MAENG
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    DOOR-LOCK APPARATUS

    • Publication number 20150368940
    • Publication date Dec 24, 2015
    • SAMSUNG SDS CO., LTD.
    • Chul-Ho MAENG
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    DOOR LOCK MORTISE

    • Publication number 20140252780
    • Publication date Sep 11, 2014
    • SAMSUNG SNS CO., LTD.
    • CHUL-HO MAENG
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES