Patents by Inventor Thomas Lee Robl

Thomas Lee Robl 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).

  • Proppant for use in hydraulic fracturing to stimulate a well
    Patent number: 10457859
    Abstract: A proppant for use in hydraulic fracturing to stimulate a well is provided. The proppant is fly ash particles having a mean particle size (d50) of between 45 ?m and 150 ?m and a size distribution defined by (d10)?5 ?m and (d98)?250 ?m.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: October 29, 2019
    Assignee: UNIVERSITY OF KENTUCKY RESEARCH FOUNDATION
    Inventors: Thomas Lee Robl, Anne Elizabeth Oberlink
  • PROPPANT FOR USE IN HYDRAULIC FRACTURING TO STIMULATE A WELL
    Publication number: 20170051199
    Abstract: A proppant for use in hydraulic fracturing to stimulate a well is provided. The proppant is fly ash particles having a mean particle size (d50) of between 45 ?m and 150 ?m and a size distribution defined by (d10)?5 ?m and (d98)?250 ?m.
    Type: Application
    Filed: November 9, 2016
    Publication date: February 23, 2017
    Inventors: Thomas Lee Robl, Anne Elizabeth Oberlink
  • PROPPANT FOR USE IN HYDRAULIC FRACTURING TO STIMULATE A WELL
    Publication number: 20150299560
    Abstract: A proppant for use in hydraulic fracturing to stimulate a well is provided. The proppant is fly ash particles having a mean particle size (d50) of between 45 ?m and 150 ?m and a size distribution defined by (d10)?5 ?m and (d98)?250 ?m.
    Type: Application
    Filed: April 16, 2015
    Publication date: October 22, 2015
    Inventors: Thomas Lee Robl, Anne Elizabeth Oberlink