TREA

Junfeng Zhu

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  • Shanghai, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Salt resistant cement
    • Patent number 9,556,076
    • Issue date Jan 31, 2017
    • EMPIRE TECHNOLOGY DEVELOPMENT LLC
    • Congqi Fang
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

  • Information Patent Application

    SALT RESISTANT CEMENT
    • Publication number 20150158774
    • Publication date Jun 11, 2015
    • EMPIRE TECHNOLOGY DEVELOPMENT LLC
    • Congqi Fang
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES