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David W. Lipp

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  • Fairfield, CT, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Polymeric sulfide mineral depressants
    • Patent number 4,902,764
    • Issue date Feb 20, 1990
    • American Cyanamid Company
    • Alan S. Rothenberg
    • B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
  • Information Patent Grant

    Method of using polymeric sulfide mineral depressants
    • Patent number 4,888,106
    • Issue date Dec 19, 1989
    • American Cyanamid Company
    • David W. Lipp
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polymeric sulfide mineral depressants
    • Patent number 4,866,150
    • Issue date Sep 12, 1989
    • American Cyanamid Company
    • David W. Lipp
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polymeric sulfide mineral depressants
    • Patent number 4,744,893
    • Issue date May 17, 1988
    • American Cyanamid Company
    • Alan S. Rothenberg
    • B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
  • Information Patent Grant

    Process for purifying alumina
    • Patent number 4,717,550
    • Issue date Jan 5, 1988
    • American Cyanamid Company
    • Donald P. Spitzer
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Stabilization of rosin dispersions with low molecular weight non-io...
    • Patent number 4,328,141
    • Issue date May 4, 1982
    • American Cyanamid Company
    • John P. Farewell
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...