TREA

Roman Keiper

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  • Wiesbaden, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Process for producing a negative-working lithographic printing form...
    • Patent number 5,328,797
    • Issue date Jul 12, 1994
    • Hoechst Aktiengesellschaft
    • Rudolf Neubauer
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Drafting material
    • Patent number 4,801,508
    • Issue date Jan 31, 1989
    • Hoechst Aktiengesellschaft
    • Walter Lutz
    • B44 - DECORATIVE ARTS
  • Information Patent Grant

    Adhesive composition
    • Patent number 4,576,981
    • Issue date Mar 18, 1986
    • Hoechst Aktiengesellschaft
    • Manfred Hilger
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES