TREA

Richard Marcinew

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  • Calgary, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Viscoelastic surfactant acid treatment
    • Patent number 8,895,481
    • Issue date Nov 25, 2014
    • Schlumberger Technology Corporation
    • Yiyan Chen
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Surfactants not toxic to bacteria
    • Patent number 7,741,252
    • Issue date Jun 22, 2010
    • Schlumberger Technology Corporation
    • Yiyan Chen
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents