Patents by Inventor Grant Alan Gist

Grant Alan Gist 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).

  • Geophysical prospecting
    Patent number: 5877995
    Abstract: Method and apparatus are provided for a new type of geophysical prospecting. The method applies an electric field to a fluid-containing porous subsurface formation to create a fluid pulse from changes in the polarization of pore fluid dipoles. The fluid pulse propagates in the subsurface as a seismic wave that may be detected by an appropriate array of seismic detectors. The apparatus is a pulsed DC or AC source for generating an applied electric field and a seismic detector.
    Type: Grant
    Filed: May 6, 1991
    Date of Patent: March 2, 1999
    Assignee: Exxon Production Research Company
    Inventors: Arthur Howard Thompson, Grant Alan Gist