Patents by Inventor Joy Stevens

Joy Stevens 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).

  • Vertical action tooth brush
    Patent number: 4575894
    Abstract: An improved toothbrush designed for brushing along the major axis of the teeth. The bristles make an obtuse angle with the major axis of the handle. A tongue-and-groove means is provided so that the brushhead can be easily removed and replaced on the same handle. The brush mounting incorporates a resilient means for automatically promoting a wiping action to the bristles.
    Type: Grant
    Filed: November 2, 1984
    Date of Patent: March 18, 1986
    Inventors: Joy Stevens, George T. Hemmeter