Patents by Inventor Ralph Enderle

Ralph Enderle 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).

  • Process for producing proppants
    Patent number: 11905463
    Abstract: The invention relates to a process for producing proppants, including the following steps: providing red mud, providing fly ash, producing a mixture from the red mud and the fly ash so that the mixture has a first moisture content in the range of 7 to 30 wt. %, producing a granular product from the mixture, and sintering the granular product.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: February 20, 2024
    Inventor: Ralph Enderle
  • PROCESS FOR PRODUCING PROPPANTS
    Publication number: 20220411690
    Abstract: The invention relates to a process for producing proppants, including the following steps: providing red mud, providing fly ash, producing a mixture from the red mud and the fly ash so that the mixture has a first moisture content in the range of 7 to 30 wt. %, producing a granular product from the mixture, and sintering the granular product.
    Type: Application
    Filed: December 22, 2020
    Publication date: December 29, 2022
    Inventor: Ralph ENDERLE
  • Proppant Material Incorporating Fly Ash and Method of Manufacture
    Publication number: 20170226410
    Abstract: A method of manufacturing a round proppant material includes forming round granules comprising fly ash and clay, wherein the fly ash is the primary component by weight, adding a separating agent to the round granules, calcining the round granules at a temperature in a range between 900° C. and 1150° C., and sintering the round granules at a temperature in a range between 1050° C. and 1350° C.
    Type: Application
    Filed: April 17, 2017
    Publication date: August 10, 2017
    Inventors: Ralph Enderle, Natalia Schwamm
  • Proppant Material Incorporating Fly Ash and Method of Manufacture
    Publication number: 20170130123
    Abstract: A relatively low density, high strength round proppant material having (i) a round core made of a sintered mixture of fly ash and clay or, in same instances, fly ash, clay, and bauxite; and (ii) an outer shell made of sintered bauxite, and a method of making the same.
    Type: Application
    Filed: January 19, 2017
    Publication date: May 11, 2017
    Inventor: Ralph Enderle
  • Proppant material incorporating fly ash and method of manufacture
    Patent number: 9587170
    Abstract: A relatively low density, high strength round proppant material having (i) a round core made of a sintered mixture of fly ash and clay or, in some instances, fly ash, clay, and bauxite; and (ii) an outer shell made of sintered bauxite, and a method of making the same.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: March 7, 2017
    Assignee: EPROPP, LLC
    Inventor: Ralph Enderle
  • Proppant Material Incorporating Fly Ash and Method of Manufacture
    Publication number: 20150057198
    Abstract: A relatively low density, high strength round proppant material having (i) a round core made of a sintered mixture of fly ash and clay or, in some instances, fly ash, clay, and bauxite; and (ii) an outer shell made of sintered bauxite, and a method of making the same.
    Type: Application
    Filed: August 20, 2013
    Publication date: February 26, 2015
    Inventor: Ralph Enderle