Patents by Inventor Carlene Caldwell

Carlene Caldwell 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).

  • Tongue brush
    Patent number: D332352
    Type: Grant
    Filed: June 7, 1990
    Date of Patent: January 12, 1993
    Inventors: Carlene Caldwell, Celia Logan