TREA

Lifeng Ma

Follow

Person

  • Zhengzhou, CN
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Grease pumping device
    • Patent number 11,560,980
    • Issue date Jan 24, 2023
    • ZHENGZHOU AUTOL TECHNOLOGY CO., LTD.
    • Daping Zhao
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Liquid distributing valve
    • Patent number 9,593,805
    • Issue date Mar 14, 2017
    • AUTOL TECHNOLOGY CO., LTD
    • Daping Zhao
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    GREASE PUMPING DEVICE
    • Publication number 20200248868
    • Publication date Aug 6, 2020
    • ZHENGZHOU AUTOL TECHNOLOGY CO., LTD.
    • Daping ZHAO
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    LIQUID DISTRIBUTING VALVE
    • Publication number 20150233525
    • Publication date Aug 20, 2015
    • AUTOL TECHNOLOGY CO., LTD
    • Daping Zhao
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...