Patents by Inventor Ralph E. Barthel

Ralph E. Barthel 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).

  • PROPPANTS AND METHODS OF USE THEREOF
    Publication number: 20160137904
    Abstract: Proppants for use in fractured or gravel packed/frac packed oil and gas wells are provided with a treatment agent component that provides the proppant with one or more additional chemical, functions, and/or mechanical functions that can be used, for example, in oil and gas well production.
    Type: Application
    Filed: October 30, 2015
    Publication date: May 19, 2016
    Inventors: Kerry Drake, Robert R. McDaniel, Spyridon Monastiriotis, Amr M. Radwan, Ralph E. Barthel