Patents by Inventor Alan Robert Risdon

Alan Robert Risdon 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).

  • Filtration aids in uranium ore processing
    Patent number: 3932276
    Abstract: Improved flocculation efficiency and filtration of carbonate leached uranium ore pulps are obtained by incorporating hydroxyalkyl guars in the filter feed slurry.
    Type: Grant
    Filed: May 9, 1974
    Date of Patent: January 13, 1976
    Assignee: Stein, Hall & Co., Inc.
    Inventors: Harold L. Ford, Nathan M. Levine, Alan Robert Risdon