TREA

Walter Kalk

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  • Leverkusen, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Quaternary reactive compounds
    • Patent number 4,695,632
    • Issue date Sep 22, 1987
    • Bayer Aktiengesellschaft
    • Walter Kalk
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    Quaternary reactive compounds
    • Patent number 4,362,874
    • Issue date Dec 7, 1982
    • Bayer Aktiengesellschaft
    • Walter Kalk
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    Benzo-[c]-cinnolinium dyestuffs
    • Patent number 4,139,530
    • Issue date Feb 13, 1979
    • Bayer Aktiengesellschaft
    • Walter Kalk
  • Information Patent Grant

    Process for the preparation of diaryl compounds
    • Patent number 4,102,924
    • Issue date Jul 25, 1978
    • Bayer Aktiengesellschaft
    • Walter Kalk
    • C07 - ORGANIC CHEMISTRY