Patents by Inventor Thomas Hartwick

Thomas Hartwick 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).

  • SYSTEM AND APPARATUS FOR APPLYING AN ELECTRIC FIELD TO A COMBUSTION VOLUME
    Publication number: 20140368121
    Abstract: A combustion system is provided, in which respective waveforms are applied to each of a plurality of electrodes positioned in a combustion volume, producing periodic electric fields between pairs of the electrodes. A safety circuit is configured to reduce or eliminate danger by grounding each of the plurality of electrodes or otherwise driving each of the electrodes to a safe state upon detection of a safety condition.
    Type: Application
    Filed: August 29, 2014
    Publication date: December 18, 2014
    Inventors: THOMAS HARTWICK, DAVID B. GOODSON, RICHARD F. RUTKOWSKI, GEOFF OSLER, CHRISTOPHER A. WIKLOF
  • Merchandising display or similar article
    Patent number: D316637
    Type: Grant
    Filed: July 14, 1987
    Date of Patent: May 7, 1991
    Assignee: Lakewood Licensing Corp.
    Inventor: Thomas Hartwick