TREA

Frederick A. Falk

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  • Pittsburgh, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Urethane-modified rosin esters
    • Patent number 4,693,846
    • Issue date Sep 15, 1987
    • PPG Industries, Inc.
    • Robert M. Piccirilli
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Phenolic-modified rosin esters
    • Patent number 4,639,492
    • Issue date Jan 27, 1987
    • PPG Industries, Inc.
    • Joseph M. Makhlouf
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...