TREA

Chen Rufang

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  • Xiamen City, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Tool-less rekeyable lock cylinder
    • Patent number 12,024,921
    • Issue date Jul 2, 2024
    • ASSA ABLOY Americas Residential Inc.
    • Chen Rufang
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Tool-less rekeyable lock cylinder
    • Patent number 11,319,726
    • Issue date May 3, 2022
    • Spectrum Brands, Inc.
    • Chen Rufang
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

  • Information Patent Application

    TOOL-LESS REKEYABLE LOCK CYLINDER
    • Publication number 20220316238
    • Publication date Oct 6, 2022
    • Spectrum Brands, Inc.
    • Chen Rufang
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    TOOL-LESS REKEYABLE LOCK CYLINDER
    • Publication number 20200123806
    • Publication date Apr 23, 2020
    • Spectrum Brands, Inc.
    • Chen Rufang
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES