TREA

Wolfgang Griehl

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  • Chur, GR, CH, CH
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Patents Grantslast 30 patents

  • Information Patent Grant

    Process for ternary polyamide filaments
    • Patent number 4,277,433
    • Issue date Jul 7, 1981
    • Inventa AG fur Forschung und Patentverwertung
    • Eduard Schmid
    • D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
  • Information Patent Grant

    Method for the manufacture of glass clear transparent polyamide
    • Patent number 4,268,661
    • Issue date May 19, 1981
    • Inventa AG fur Forschung und Patentverwertung, Zurich
    • Eduard Schmid
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Injection moldable glass clear transparent polyamide
    • Patent number 4,232,145
    • Issue date Nov 4, 1980
    • Inventa AG fur Forschung und Patentverwertung, Zurich
    • Eduard Schmid
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Ternary polyamide filaments
    • Patent number 4,225,699
    • Issue date Sep 30, 1980
    • Inventa AG fur Forschung und Patentverwertung, Zurich
    • Eduard Schmid
    • D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
  • Information Patent Grant

    Fiber-reinforced cement-like material
    • Patent number 4,199,366
    • Issue date Apr 22, 1980
    • Inventa AG fur Forschung und Patentverwertung
    • Peter Schaefer
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Process for producing hydrolysis-stable shaped structures of polyester
    • Patent number 4,144,285
    • Issue date Mar 13, 1979
    • Inventa AG Fur Forschung und Patent-verwertung, Zurich
    • Max Maschek
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...