TREA

BEIJING PETROLEUM MACHINERY CO.

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Organization

  • Beijing, CN
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Cementing plug
    • Patent number 10,808,496
    • Issue date Oct 20, 2020
    • China National Petroleum Corporation
    • Hongying Zhang
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    CEMENTING PLUG
    • Publication number 20180313186
    • Publication date Nov 1, 2018
    • CHINA NATIONAL PETROLEUM CORPORATION
    • Hongying Zhang
    • E21 - EARTH DRILLING MINING

Trademarklast 30 trademarks

  • Information Trademark

    85453934 - BPM
    • Serial number 85453934
    • Registration number 4463163
    • Filing date Oct 23, 2011
    • BEIJING PETROLEUM MACHINERY CO.
    • 7 - Machines and machine tools
  • Information Trademark

    77888138
    • Serial number 77888138
    • Registration number 3924050
    • Filing date Dec 7, 2009
    • BEIJING PETROLEUM MACHINERY CO.
    • 7 - Machines and machine tools
  • Information Trademark

    77888151 - BPM
    • Serial number 77888151
    • Registration number 3912202
    • Filing date Dec 7, 2009
    • BEIJING PETROLEUM MACHINERY CO.
    • 7 - Machines and machine tools