Patents by Inventor Mary Ann Hunter

Mary Ann Hunter 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).

  • Tartar control oral compositions
    Patent number: 5885556
    Abstract: Disclosed are oral compositions comprising a nonionic surfactant and/or amphoteric surfactant, an anionic surfactant, free pyrophosphate ions or tetrasodium pyrophosphate, free fluoride ions, and one or more aqueous carriers. The compositions may also contain an alkali metal bicarbonate salt and xylitol.
    Type: Grant
    Filed: August 6, 1996
    Date of Patent: March 23, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Michael Frederick Lukacovic, Liezl Gonzales Peterson, Steven Carl Burgess, Gregory Berry, Mary Ann Hunter-Rinderle
  • Breath protection microcapsules
    Patent number: 5286496
    Abstract: The present invention relates to oral compositions in the form of microcapsules which reduce oral bacteria and provide long lasting breath protection.
    Type: Grant
    Filed: January 11, 1993
    Date of Patent: February 15, 1994
    Assignee: The Procter & Gamble Company
    Inventors: Judith H. Stapler, Mary Ann Hunter