Patents by Inventor Valerie A. Howell

Valerie A. Howell 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).

  • Signaling powered tooth brush
    Patent number: D391398
    Type: Grant
    Filed: April 24, 1997
    Date of Patent: March 3, 1998
    Inventor: Valerie A. Howell