TREA

Kuei-Jung CHAN

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  • TAICHUNG CITY, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rotatable folding bicycle stem
    • Patent number 11,117,639
    • Issue date Sep 14, 2021
    • Kuei-I Chan
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Clutch unit of bicycle derailleur
    • Patent number 10,124,857
    • Issue date Nov 13, 2018
    • AD-II ENGINEERING INC.
    • Kuei-Jung Chan
    • B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    Rotatably Retractable Bicycle Stem
    • Publication number 20210001949
    • Publication date Jan 7, 2021
    • Kuei-I Chan
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Application

    CLUTCH UNIT OF BICYCLE DERAILLEUR
    • Publication number 20170343063
    • Publication date Nov 30, 2017
    • AD-II ENGINEERING INC.
    • Kuei-Jung CHAN
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS