TREA

Richard M. Kopchik

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  • Southampton, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Toughened polar thermoplastics
    • Patent number 5,625,001
    • Issue date Apr 29, 1997
    • Rohm & Haas Company
    • Samuel J. Makower
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    High-surface-area compositions
    • Patent number 5,137,926
    • Issue date Aug 11, 1992
    • Rohm & Haas Company
    • Stephen G. Maroldo
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    High-surface-area fiber
    • Patent number 5,037,857
    • Issue date Aug 6, 1991
    • Rohm & Haas Company
    • Stephen G. Maroldo
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Thermoplastic non-crosslinked polymers, imide polymers, and process...
    • Patent number 4,742,123
    • Issue date May 3, 1988
    • Rohm & Haas Co.
    • Richard M. Kopchik
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Blends of imide polymers and vinyl chloride polymers
    • Patent number 4,255,322
    • Issue date Mar 10, 1981
    • Rohm & Haas Company
    • Richard M. Kopchik
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Imidized acrylic polymers
    • Patent number 4,246,374
    • Issue date Jan 20, 1981
    • Rohm & Haas Company
    • Richard M. Kopchik
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents