TREA

Wilfred L. Freyberger

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  • Houghton, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Froth flotation method and apparatus
    • Patent number 4,737,272
    • Issue date Apr 12, 1988
    • Baker International Corporation
    • Marian Szatkowski
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Branched alkyl ether amines as iron ore flotation aids
    • Patent number 4,319,987
    • Issue date Mar 16, 1982
    • Exxon Research and Engineering Co.
    • Donald L. Shaw
    • B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...