Patents by Inventor James E. Swenarton, deceased

James E. Swenarton, deceased 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).

  • Method of synthesizing gamma pyrones
    Patent number: 5908941
    Abstract: Maltol and ethyl maltol can be produced from a haloenone intermediate by reacting the intermediate with acid in a reaction medium comprising an aprotic solvent.
    Type: Grant
    Filed: November 6, 1996
    Date of Patent: June 1, 1999
    Assignee: Cultor, Ltd.
    Inventors: Fu-Ning Fung, Bruce A. Hay, James E. Swenarton, deceased