Patents by Inventor Sandra Etienne

Sandra Etienne 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).

  • Fluorochemical sulfonamide surfactants
    Publication number: 20050148491
    Abstract: Described are fluorochemical surfactants derived from nonafluorobutanesulfonyl fluoride that contain polyalkyleneoxy side chains and may be copolymerized with acrylic acid or methacrylic acid to form polyacrylates or polymethacrylates. The surfactants surprisingly lower the surface tension of water and other liquids in the same or similar low values achieved by premier surfactants such as those derived from perfluorooctane sulfonyl fluoride.
    Type: Application
    Filed: February 7, 2005
    Publication date: July 7, 2005
    Inventors: Patricia Savu, Sandra Etienne