Patents by Inventor Francis B. J. Skinner

Francis B. J. Skinner 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).

  • Dentifrices
    Patent number: 4132773
    Abstract: Dentifrice composition for combatting dental caries containing sodium trimetaphosphate as an anti-caries agent and a compatible abrasive agent comprising a silica xerogel.
    Type: Grant
    Filed: May 18, 1977
    Date of Patent: January 2, 1979
    Assignee: Lever Brothers Company
    Inventors: John S. Best, Ronald Hoyles, Geoffrey S. Ingram, Francis B. J. Skinner