Patents by Inventor Joan Collinge

Joan Collinge 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: 3966901
    Abstract: The present invention relates to a dentifrice preparation containing a water-soluble monofluorophosphate and a polishing material containing at least a major proportion of dimagnesium orthophosphate.
    Type: Grant
    Filed: February 21, 1975
    Date of Patent: June 29, 1976
    Assignee: Colgate-Palmolive Company
    Inventors: Douglas Charles Cullum, Joan Collinge