TREA

Edward A. Knaggs

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  • Deerfield, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sulfonation petroleum composition
    • Patent number 4,390,474
    • Issue date Jun 28, 1983
    • Stepan Chemical Company
    • Marvin L. Nussbaum
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Process for enhanced oil recovery employing petroleum sulfonates
    • Patent number 4,252,192
    • Issue date Feb 24, 1981
    • Stepan Chemical Company
    • Marvin L. Nussbaum
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Petroleum sulfonates
    • Patent number 4,177,207
    • Issue date Dec 4, 1979
    • Stepan Chemical Company
    • Marvin L. Nussbaum
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Process for sulfonation
    • Patent number 4,148,821
    • Issue date Apr 10, 1979
    • Stepan Chemical Company
    • Marvin L. Nussbaum
    • C07 - ORGANIC CHEMISTRY