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BEIJING RECHSAND SAND INDUSTRY SCIENCE & TECHNOLOGY CO., LTD

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  • Beijing, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hydrophobic proppant and preparation method thereof
    • Patent number 9,434,874
    • Issue date Sep 6, 2016
    • BEIJING RECHSAND SAND INDUSTRY SCIENCE & TECHNOLOGY CO., LTD.
    • Shengyi Qin
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

  • Information Patent Application

    HYDROPHOBIC PROPPANT AND PREPARATION METHOD THEREOF
    • Publication number 20130225458
    • Publication date Aug 29, 2013
    • BEIJING RECHSAND SAND INDUSTRY SCIENCE & TECHNOLOGY CO., LTD
    • Shengyi Qin
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

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