Patents by Inventor Eliane Darnand

Eliane Darnand 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).

  • Method for preparing polyhalogenated paratrifluoromethylanilines
    Patent number: 6479703
    Abstract: The invention concerns a novel method for preparing polyhalogenated paratrifluormethylanilines particularly useful as reaction intermediates for preparing compositions used as insecticides. The products of the inventive method are obtained by the action of ammonia on polyhalogenated para-trifluoromethylbenzene at a temperature ranging between 150 and 350° C. The inventive reaction can be carried out in the presence of an alkaline halide.
    Type: Grant
    Filed: August 23, 2001
    Date of Patent: November 12, 2002
    Assignee: Aventis CropScience SA
    Inventors: Jean-Erick Ancel, Eliane Darnand