Patents by Inventor Virginia F. Stout

Virginia F. Stout 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).

  • Process for preparing triglycerides containing polyunsaturated fatty acid moieties
    Patent number: 5149851
    Abstract: Glycerides containing methylene-interrupted polyunsaturated fatty acid moieties are prepared by reacting a lower alkyl ester of the corresponding polyunsaturated fatty acid or desired mixture of fatty acids with glycerol in the presence of alkoxide ion as the catalyst and removing the lower alcohol as it is formed, preferably at a pressure below atmospheric pressure. Triglycerides of omega-3 fatty acids, such as EPA and DHA, were prepared and triglycerides of mixed polyunsaturated and monounsaturated or short or medium chain fatty acids can also be prepared using that approach.
    Type: Grant
    Filed: October 25, 1990
    Date of Patent: September 22, 1992
    Assignee: The United States of America as represented by the Secretary of Commerce
    Inventors: Virginia F. Stout, Erich J. Gauglitz, Jr., William B. Nilsson
  • Purification of fish oils
    Patent number: 4692280
    Abstract: Fish oil is purified by extraction with supercritical carbon dioxide.
    Type: Grant
    Filed: December 1, 1986
    Date of Patent: September 8, 1987
    Assignee: The United States of America as represented by the Secretary of Commerce
    Inventors: John Spinelli, Virginia F. Stout, William B. Nilsson
  • Polyunsaturated fatty acids from fish oils
    Patent number: 4675132
    Abstract: Polyunsaturated fatty acid moieties in fish oil are concentrated by transesterifying fish oil glycerides with a lower alkanol to form a mixture of lower alkyl fatty acid esters, and extracting the esters with carbon dioxide under supercritical conditions.
    Type: Grant
    Filed: June 24, 1986
    Date of Patent: June 23, 1987
    Assignee: The United States of America as represented by the Secretary of Commerce
    Inventors: Virginia F. Stout, John Spinelli