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Guangrui Ran

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  • Zhongshan, Guangdong, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Latch bolt buffer structure for lock body
    • Patent number 11,248,393
    • Issue date Feb 15, 2022
    • Guangdong Mingmen Locks Industry Co., Ltd.
    • Qian Xiao
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

  • Information Patent Application

    DOOR HINGE
    • Publication number 20240110421
    • Publication date Apr 4, 2024
    • Guangdong Mingmen Locks Industry Co., Ltd.
    • Guangrui Ran
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    Latch Bolt Buffer Structure For Lock Body
    • Publication number 20190226235
    • Publication date Jul 25, 2019
    • Guangdong Mingmen Locks Industry Co., Ltd.
    • Qian Xiao
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES