Patents by Inventor Yolande Bourgau

Yolande Bourgau 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).

  • Preparation of carboxylic acid alkyl esters
    Patent number: 3931290
    Abstract: Carboxylic acid alkyl esters are prepared by reacting an halo-alkane with an aqueous solution of an alkali metal salt of a carboxylic acid, using ammonia, a primary amine, a secondary amine, a heavy tertiary amine or a heavy quaternary ammonium salt as the catalyst.
    Type: Grant
    Filed: September 8, 1972
    Date of Patent: January 6, 1976
    Assignee: Rhone-Progil
    Inventors: Yolande Bourgau, Jean Berthoux, Ghislain Schwachhofer