Patents by Inventor Anna Sophie E ter Meer

Anna Sophie E ter Meer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Compositions of enantiomeric diacyl tartaric anhydrides and preparation thereof
    Patent number: 6130257
    Abstract: The present invention relates to compositions comprising mixtures of two enantiomeric forms of diacyl tartaric anhydride and mixtures obtainable by reacting an organic compound with a mixture comprising two enantiomeric forms of diacyl tartaric anhydride. The invention also relates to a method for the preparation of such enantiomeric mixtures, starting from a mixture comprising D-tartaric acid and L-tartaric acid. The method involves reacting tartaric acid with a fatty acid anhydride under dielectric heating conditions.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: October 10, 2000
    Assignee: Quest International B.V.
    Inventors: Peter Joannes Coenders, Saskia Alexandra Galema, Johannes Durk Gombert, Anna Sophie E ter Meer