Patents by Inventor Suzanne M. Hess

Suzanne M. Hess 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).

  • Scratch a sketch
    Patent number: 4937103
    Abstract: A colored coating soft fired on a ceramic baseis scratched to remove the coating where scratched to produce a picture or design which is preserved by hard firing and glazing.
    Type: Grant
    Filed: May 12, 1988
    Date of Patent: June 26, 1990
    Inventor: Suzanne M. Hess