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Sylvia Nefkens

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  • Amsterdam, NL
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Patents Grantslast 30 patents

  • Information Patent Grant

    Fabric detergent formulation
    • Patent number 11,905,494
    • Issue date Feb 20, 2024
    • Celanese International Corporation
    • Sylvia Nefkens
    • C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...

Patents Applicationslast 30 patents

  • Information Patent Application

    Process for Making Sorbic Acid from Renewable Materials
    • Publication number 20230118462
    • Publication date Apr 20, 2023
    • CELANESE INTERNATIONAL CORPORATION
    • Aujke van Kooij
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Application

    Fabric Detergent Formulation
    • Publication number 20210246398
    • Publication date Aug 12, 2021
    • CELANESE INTERNATIONAL CORPORATION
    • Sylvia Nefkens
    • C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...