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Michael Kressner

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  • Leichlingen, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pigment preparations
    • Patent number 5,959,001
    • Issue date Sep 28, 1999
    • Bayer Aktiengesellschaft
    • Klaus Walz
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Pigment preparations
    • Patent number 5,889,065
    • Issue date Mar 30, 1999
    • Bayer Aktiengesellschaft
    • Stephan Kirchmeyer
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Colored thermoplastic resin composition
    • Patent number 4,988,752
    • Issue date Jan 29, 1991
    • Bayer Aktiengesellschaft
    • Rainer Hamprecht
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Dyestuff preparations, processes for their production and their use...
    • Patent number 4,386,195
    • Issue date May 31, 1983
    • Bayer Aktiengesellschaft
    • Fritz Bremer
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Colorant preparations, a process for their production and their use...
    • Patent number 4,332,587
    • Issue date Jun 1, 1982
    • Bayer Aktiengesellschaft
    • Michael Kressner
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...