TREA

David R. Gehman

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  • Harleysville, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Contact adhesives
    • Patent number 4,477,622
    • Issue date Oct 16, 1984
    • Rohm & Haas Company
    • F. Thomas. Sanderson
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Solubilized acrylic polymers and carpet shampoos containing the same
    • Patent number 4,203,859
    • Issue date May 20, 1980
    • Rohm & Haas Company
    • William A. Kirn
    • C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
  • Information Patent Grant

    Acrylic hair setting resins having high resistance to moisture and...
    • Patent number 4,196,190
    • Issue date Apr 1, 1980
    • Rohm & Haas Company
    • David R. Gehman
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Oligomeric aqueous finishes
    • Patent number 4,168,255
    • Issue date Sep 18, 1979
    • Rohm & Haas Company
    • Sheldon N. Lewis
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Internally plasticized polymer latex
    • Patent number 4,150,005
    • Issue date Apr 17, 1979
    • Rohm & Haas Company
    • David R. Gehman
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Oligomeric aqueous finishes
    • Patent number 4,022,730
    • Issue date May 10, 1977
    • Rohm & Haas Company
    • Sheldon N. Lewis
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polishing method
    • Patent number 4,017,662
    • Issue date Apr 12, 1977
    • Rohm & Haas Company
    • David R. Gehman
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...