TREA

Chris Heller

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  • St. Louis, MO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ceramic proppants
    • Patent number 9,434,873
    • Issue date Sep 6, 2016
    • Shamrock Group
    • Frank O'Brien
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Patents Applicationslast 30 patents

  • Information Patent Application

    CERAMIC PROPPANTS
    • Publication number 20150068745
    • Publication date Mar 12, 2015
    • Frank O'Brien
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...