Patents by Inventor Todd S. Griffith

Todd S. Griffith 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).

  • Patent number: 11644234
    Abstract: There is provided a system and method for producing liquefied natural gas (LNG). An exemplary method includes flowing a high-pressure stream of LNG through a first series of liquid turbines. The exemplary method also includes generating electricity by reducing the pressure of the high-pressure stream of LNG to form a low-pressure stream of LNG. The exemplary method additionally includes bypassing any one the liquid turbines that has a failure while continuing to produce electricity from the first series.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: May 9, 2023
    Assignee: ExxonMobil Technology and Enginering Company
    Inventors: Christopher G. Holt, Todd S. Griffith
  • Publication number: 20200232704
    Abstract: There is provided a system and method for producing liquefied natural gas (LNG). An exemplary method includes flowing a high-pressure stream of LNG through a first series of liquid turbines. The exemplary method also includes generating electricity by reducing the pressure of the high-pressure stream of LNG to form a low-pressure stream of LNG. The exemplary method additionally includes bypassing any one the liquid turbines that has a failure while continuing to produce electricity from the first series.
    Type: Application
    Filed: April 7, 2020
    Publication date: July 23, 2020
    Inventors: Christopher G. Holt, Todd S. Griffith, Jr.
  • Patent number: 10648729
    Abstract: There is provided a system and method for producing liquefied natural gas (LNG). An exemplary method includes flowing a high-pressure stream of LNG through a first series of liquid turbines. The exemplary method also includes generating electricity by reducing the pressure of the high-pressure stream of LNG to form a low-pressure stream of LNG. The exemplary method additionally includes bypassing any one the liquid turbines that has a failure while continuing to produce electricity from the first series.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: May 12, 2020
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Christopher G. Holt, Todd S. Griffith
  • Publication number: 20170003072
    Abstract: There is provided a system and method for producing liquefied natural gas (LNG). An exemplary method includes flowing a high-pressure stream of LNG through a first series of liquid turbines. The exemplary method also includes generating electricity by reducing the pressure of the high-pressure stream of LNG to form a low-pressure stream of LNG. The exemplary method additionally includes bypassing any one the liquid turbines that has a failure while continuing to produce electricity from the first series.
    Type: Application
    Filed: September 15, 2016
    Publication date: January 5, 2017
    Inventors: Christopher G. Holt, Todd S. Griffith
  • Publication number: 20130119666
    Abstract: There is provided a system and method for producing liquefied natural gas (LNG). An exemplary method includes flowing a high-pressure stream of LNG through a first series of liquid turbines. The exemplary method also includes generating electricity by reducing the pressure of the high-pressure stream of LNG to form a low-pressure stream of LNG. The exemplary method additionally includes bypassing any one the liquid turbines that has a failure while continuing to produce electricity from the first series.
    Type: Application
    Filed: June 24, 2011
    Publication date: May 16, 2013
    Inventors: Christopher G. Holt, Todd S. Griffith
  • Patent number: 8146664
    Abstract: A method for utilizing gas produced from an in situ conversion process includes heating an organic-rich rock formation, for example an oil shale formation. The method may include producing a production fluid from the organic-rich rock formation where the production fluid has been at least partially generated as a result of pyrolysis of formation hydrocarbons located in the organic-rich rock formation. The method may include obtaining a gas stream from the production fluid, where the gas stream comprises combustible hydrocarbon fluids. The method may include separating the gas stream into a first composition gas stream and a second composition gas stream, where the composition of the first composition gas stream is a low BTU gas stream maintained in a substantially constant condition and passing the first composition gas stream through a gas turbine to form a gas turbine exhaust stream, where the gas turbine is connected to an electrical generator.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: April 3, 2012
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Robert D. Kaminsky, C. Stan Speed, Todd S. Griffith, Loren K. Starcher, William A. Symington
  • Publication number: 20080289819
    Abstract: A method for utilizing gas produced from an in situ conversion process is provided. The method may include heating an organic-rich rock formation, for example an oil shale formation, in situ. The method may further include producing a production fluid from the organic-rich rock formation where the production fluid having been at least partially generated as a result of pyrolysis of formation hydrocarbons, for example oil shale, located in the organic-rich rock formation. The method may include obtaining a gas stream from the production fluid, where the gas stream comprises combustible hydrocarbon fluids.
    Type: Application
    Filed: May 21, 2008
    Publication date: November 27, 2008
    Inventors: Robert D. Kaminsky, C. Stan Speed, Todd S. Griffith, Loren K. Starcher, William A. Symington