YAU DONG CHANG

Person

  • Changhua County, TW

Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    TESTING MACHINE FOR TIRES

    • Publication number 20240085275
    • Publication date Mar 14, 2024
    • EKTRON TEK CO.,LTD.
    • YAU DONG CHANG
    • G01 - MEASURING TESTING
  • Information Patent Application

    PLASTOMETER

    • Publication number 20200309659
    • Publication date Oct 1, 2020
    • EKTRON TEK CO.,LTD.
    • YAU DONG CHANG
    • G01 - MEASURING TESTING
  • Information Patent Application

    TRANSMISSION STRUCTURE OF OZONE TESTING MACHINE

    • Publication number 20190360566
    • Publication date Nov 28, 2019
    • EKTRON TEK CO.,LTD.
    • YAU-DONG CHANG
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    TIRE ROLLING RESISTANCE TEST MACHINE

    • Publication number 20190178753
    • Publication date Jun 13, 2019
    • EKTRON TEK CO.,LTD.
    • YAU DONG CHANG
    • G01 - MEASURING TESTING