Patents by Inventor L. R. Denham

L. R. Denham 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 geological surface and subsurface resistivity
    Patent number: 9523785
    Abstract: A method for determining geological subsurface resistivity. The method includes obtaining a set of lightning parameters associated with a lighting strike received by a geological volume of material, the set of lightning parameters including an indicium of the current of the lightning strike at a first initial time and an indicium of the current of the lightning strike at a first decay time subsequent to the first initial time, and inferring the resistance of the volume of geological material, at least in part, from the set of lightning parameters.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: December 20, 2016
    Assignee: Dynamic Measurement, LLC
    Inventors: L. R. Denham, H. Roice Nelson, Jr., D. James Siebert
  • METHOD FOR DETERMINING GEOLOGICAL SURFACE AND SUBSURFACE RESISTIVITY
    Publication number: 20160033672
    Abstract: A method for determining geological subsurface resistivity. The method includes obtaining a set of lightning parameters associated with a lighting strike received by a geological volume of material, the set of lightning parameters including an indicium of the current of the lightning strike at a first initial time and an indicium of the current of the lightning strike at a first decay time subsequent to the first initial time, and inferring the resistance of the volume of geological material, at least in part, from the set of lightning parameters.
    Type: Application
    Filed: August 4, 2014
    Publication date: February 4, 2016
    Inventors: L. R. Denham, H. Roice Nelson, JR., D. James Siebert
  • Method for locating sub-surface natural resources
    Publication number: 20110163733
    Abstract: A method for locating sub-surface natural resources. The method utilizes lightning data to discern relatively likely locations for finding the sub-surface natural resources.
    Type: Application
    Filed: January 7, 2010
    Publication date: July 7, 2011
    Inventors: H. Roice Nelson, JR., Joseph H. Roberts, D. James Siebert, Wulf F. Massell, Samuel D. LeRoy, L. R. Denham, Robert Ehrlich, Richard L. Coons