Patents by Inventor Charlotte R. Droughton

Charlotte R. Droughton 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).

  • Separation processes and apparatus
    Publication number: 20030178372
    Abstract: Processes and apparatus are presented which allow efficient use of solid/liquid and liquid/liquid stages with chemical additives in separations technology.
    Type: Application
    Filed: December 18, 2002
    Publication date: September 25, 2003
    Inventors: Charlotte R. Droughton, Wenping Li