Patents by Inventor David L. Charlesworth

David L. Charlesworth 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).

  • Carbon oxides removal
    Patent number: 8658705
    Abstract: A process for reducing the carbon oxide content in natural gas, by producing a carbon oxide containing natural gas from a geological formation through a natural gas delivery system; providing a reaction zone containing at least one catalyst suitable for hydrocarbon conversion in the natural gas delivery system; introducing hydrogen into the carbon oxide containing natural gas to form a reaction mixture; and passing the reaction mixture to the catalyst in the reaction zone to convert at least a portion of the carbon oxides in the natural gas to hydrocarbons.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: February 25, 2014
    Assignee: Chevron U.S.A. Inc.
    Inventors: David Thomas, Rod Travis, Michael Moppert, Christopher John Kalli, Gerald M. Elphingstone, Jr., David L. Charlesworth
  • CARBON OXIDES REMOVAL
    Publication number: 20140005284
    Abstract: A process for reducing the carbon oxide content in natural gas, by producing a carbon oxide containing natural gas from a geological formation through a natural gas delivery system; providing a reaction zone containing at least one catalyst suitable for hydrocarbon conversion in the natural gas delivery system; introducing hydrogen into the carbon oxide containing natural gas to form a reaction mixture; and passing the reaction mixture to the catalyst in the reaction zone to convert at least a portion of the carbon oxides in the natural gas to hydrocarbons.
    Type: Application
    Filed: June 27, 2012
    Publication date: January 2, 2014
    Applicant: CHEVRON U.S.A., INC.
    Inventors: David Thomas, Rod Travis, Michael Moppert, Christopher John Kalli, Gerald M. Elphingstone, JR., David L. Charlesworth
  • Converting carbon oxides in gas phase fluids
    Patent number: 8487010
    Abstract: A process for reducing the carbon oxide content in natural gas, by producing a carbon oxide containing natural gas from a geological formation through a natural gas delivery system; providing a reaction zone containing at least one catalyst suitable for hydrocarbon conversion in the natural gas delivery system; introducing hydrogen into the carbon oxide containing natural gas to form a reaction mixture; and passing the reaction mixture to the catalyst in the reaction zone to convert at least a portion of the carbon oxides in the natural gas to hydrocarbons.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: July 16, 2013
    Assignee: Chevron U.S.A. Inc.
    Inventors: David Thomas, Rod Travis, Michael Moppert, Christopher John Kalli, Gerald M. Elphingstone, Jr., David L. Charlesworth