Patents by Inventor Georges N. Creel

Georges N. Creel 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).

  • Test plate having a thermal test pattern
    Patent number: 4549814
    Abstract: A thermal test pattern comprises motifs of a material having a high thermal emissivity which are provided on one side of a flat substrate. The substrate has a low thermal emissivity. The other side of the substrate is covered with a layer of a material having a high electrical resistivity which is provided between two conductive connection strips. The motifs and connection strips and resistive layer may be deposited by silk screening. Due to the differences in thermal emissivity, a temperature difference occurs between the substrate and the motifs, the motifs being colder, when the substrate is heated by passing an electric current through the resistive layer.
    Type: Grant
    Filed: December 1, 1983
    Date of Patent: October 29, 1985
    Assignee: U.S. Philips Corporation
    Inventors: Georges N. Creel, Claude Morelle