Patents by Inventor Phil J Frank

Phil J Frank 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).

  • Drawing apparatus, method of use and resultant art
    Patent number: 7381057
    Abstract: A drawing apparatus and an associated method that allows selective heating of a substrate when a colorant, such as a crayon, is applied to the substrate. The heated substrate at least partially liquefies the colorant. The colorant is then absorbed into the substrate to create a translucent image on the substrate. When the colorant is removed from the substrate, the substrate correspondingly disengages from a heat source and the image formed on the substrate cools and hardens.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: June 3, 2008
    Inventor: Phil J Frank