Patents by Inventor Robert R. Ferguson

Robert R. Ferguson 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).

  • Patent number: 4933197
    Abstract: A membrane process for producing a juice product with improved quality comprising feeding a single strength juice to a plurality of microfiltration/ultrafiltration stages wherein the first stage is a microfilter having a membrane pore size smaller than the spoilage microorganisms but substantially larger than the flavor and aroma molecules and wherein subsequent stages are ultrafilters having membranes of decreasing pore size.
    Type: Grant
    Filed: June 7, 1989
    Date of Patent: June 12, 1990
    Assignee: SeparaSystems LP
    Inventors: James B. Walker, Robert R. Ferguson