Patents by Inventor John C. Lawrenson

John C. Lawrenson 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).

  • High pressure apparatus with stackable rings
    Patent number: 8435347
    Abstract: A high pressure apparatus and related methods for processing supercritical fluids is described. The apparatus includes a capsule, a heater, at least one ceramic ring with one or more scribe marks and/or cracks present. The apparatus optionally has a metal sleeve containing each ceramic ring. The apparatus also has a high-strength enclosure, end flanges with associated insulation, and a power control system. The apparatus is capable of accessing pressures and temperatures of 0.2-2 GPa and 400-1200° C., respectively.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: May 7, 2013
    Assignees: Soraa, Inc., Elmhurst Research, Inc.
    Inventors: Mark P. D'Evelyn, Joseph A. Kapp, John C. Lawrenson
  • High Pressure Apparatus with Stackable Rings
    Publication number: 20120137966
    Abstract: A high pressure apparatus and related methods for processing supercritical fluids is described. The apparatus includes a capsule, a heater, at least one ceramic ring with one or more scribe marks and/or cracks present. The apparatus optionally has a metal sleeve containing each ceramic ring. The apparatus also has a high-strength enclosure, end flanges with associated insulation, and a power control system. The apparatus is capable of accessing pressures and temperatures of 0.2-2 GPa and 400-1200° C., respectively.
    Type: Application
    Filed: September 27, 2010
    Publication date: June 7, 2012
    Applicants: Elmhurst Research, Inc., Soraa, Inc.
    Inventors: Mark P. D'Evelyn, Joseph A. Kapp, John C. Lawrenson