TREA

William L. Krayer

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  • Mt. Lebanon Township, Allegheny County all of, PA, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Method of making amine/propylene copolymers
    • Patent number 5,248,737
    • Issue date Sep 28, 1993
    • Aristech Chemical Corporation
    • Andrew J. Sivak
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Amine/propylene copolymers
    • Patent number 5,239,030
    • Issue date Aug 24, 1993
    • Aristech Chemical Corporation
    • Andrew J. Sivak
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Diallyl silyl amines
    • Patent number 5,200,542
    • Issue date Apr 6, 1993
    • Aristech Chemical Corporation
    • Andrew J. Sivak
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...