Patents by Inventor Ethelyn P. Motley

Ethelyn P. Motley 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).

  • Recovery system for oil shale deposits
    Patent number: 4065183
    Abstract: A process for the in-situ recovery of hydrocarbon, carbon monoxide, and hydrogen values and associated minerals from subsurface oil shale deposits is provided by forming a gas-tight retort chamber and injecting it with a hot, pressurized gas followed by a solvent extraction and finally a combustion of the hydrocarbon residue. In order to conduct the process, the shale formation must be beneath a gas impermeable geological structure which will form a gas-tight chamber upon leaching of the water soluble minerals.
    Type: Grant
    Filed: November 15, 1976
    Date of Patent: December 27, 1977
    Assignee: TRW Inc.
    Inventors: David A. Hill, Durk J. Pearson, Ethelyn P. Motley, Thomas N. Beard, James L. Farrell