Patents by Inventor Frederick J. Cassels

Frederick J. Cassels 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).

  • Plaque inhibiting oligosaccharide
    Patent number: 5071977
    Abstract: A purified oligosaccharide consisting of a hexasaccharide with a native molecular weight of 959 which can be isolated from the cell walls of Streptococcus sanguis. The oligosaccharide is able to significantly block the interaction between the human oral plaque bacteria Streptococcus sanguis H1 and Capnocytophaga ochracea ATCC 33596. This purified oligosaccharide contains saccharide components found to inhibit many known interactions between plaque bacteria and may be effective in prevention, inhibition and reversal of dental plaque deposits. The oligosaccharide may be applied effectively when incorporated in toothpastes, mouth wash, etc.
    Type: Grant
    Filed: May 10, 1989
    Date of Patent: December 10, 1991
    Assignee: The United States of America as represented by the Secretary of the Department of Health and Human Services
    Inventors: Frederick J. Cassels, Jack London