Patents by Inventor Phillip D. Ritchie

Phillip D. Ritchie 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).

  • Enhanced methane flash system for natural gas liquefaction
    Patent number: 7404300
    Abstract: Natural gas liquefaction system employing an open methane cycle wherein the liquefied natural gas is flashed immediately upstream of the liquefied natural gas storage tank and boil off vapors from the tank are returned to the open methane cycle.
    Type: Grant
    Filed: November 10, 2003
    Date of Patent: July 29, 2008
    Inventors: Ned P. Baudat, Anthony P. Eaton, Phillip D. Ritchie, Paul R. Hahn, Jame Yao, Rong-Jwyn Lee