Patents by Inventor Elizabeth J. Mueller

Elizabeth J. Mueller 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).

  • Toothbrush exhibiting three-dimensional bristle profile and end rounded bristles for improved interproximal cleaning without increasing gum irritation
    Patent number: 5511275
    Abstract: A toothbrush is provided for achieving improved interproximal cleaning without increasing gum irritation. The bristles of the toothbrush have a generally "V" shaped side profile. In addition, the exposed ends of all of the bristles are properly end rounded. The dimensions and shape of the "V" shape fall within a certain range, as does the stiffness of the bristles. These characteristics allow the bristles to penetrate into the interproximal areas with enough force to effectively clean these areas without causing irritation to the user's gums.
    Type: Grant
    Filed: May 16, 1995
    Date of Patent: April 30, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Daniel W. Volpenhein, Elizabeth J. Mueller, Thomas J. Hall