Patents by Inventor Dewey B. Keeton, III

Dewey B. Keeton, III 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).

  • Method for determining petroleum saturation in a subsurface
    Patent number: 5065019
    Abstract: A device and method for determining the depth of contaminant of petroleum based products in a subsurface, such as after an oil spill. The device is implemented either as a manual probe or as attachment to excavating equipment. The device has an ultraviolet radiation source for irradiating waves into the subsurface, and a visible-light detector for receiving fluorescence, which is induced by the contaminant when the contaminant is exposed to the ultraviolet radiation.
    Type: Grant
    Filed: May 7, 1990
    Date of Patent: November 12, 1991
    Assignee: Southwest Research Institute
    Inventors: Glenn T. Darilek, Dewey B. Keeton, III