Patents Examined by Shep K. Ross
  • Stabilized peroxide gels containing fluoride
    Patent number: 5217710
    Abstract: An oral composition is provided that includes a peroxygen compound such as hydrogen peroxide, a fluoride-containing anticaries agent and a tin compound, especially stannous chloride. The tin compound stabilizes the peroxygen compound against decomposition that ordinarily would be induced by the presence of fluoride.
    Type: Grant
    Filed: March 5, 1992
    Date of Patent: June 8, 1993
    Assignee: Chesebrough-Pond's USA Co.
    Inventors: David R. Williams, Christine W. Ryles, Alexander G. Ziemkiewicz
  • Vitamin E oil based dentifrice
    Patent number: 4411885
    Abstract: The present invention provides a tableted dentifrice comprising a compact mass of a substantially anhydrous composition having vitamin E, a surfactant agent and an abrasive agent suitable for removal of plaque. The substantially anhydrous composition has at least about 10 weight percent vitamin E therein.
    Type: Grant
    Filed: March 22, 1982
    Date of Patent: October 25, 1983
    Inventors: Ronald R. Barels, Daniel J. Ghinazzi