Patents by Inventor Steven Andrew Leppard

Steven Andrew Leppard 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).

  • Publication number: 20240060093
    Abstract: Systems and methods for producing methanol are provided. A reformer feed gas including methane and carbon dioxide is provided to a methane reformer, which produces a synthesis gas. The synthesis gas includes a first portion of hydrogen, a second portion of carbon monoxide, and a third portion of carbon dioxide. The methane is present in the reformer feed gas in an amount of between 20 volume percent (vol %) and 90 vol % and the carbon dioxide is present in the reformer feed gas in an amount of between 10 vol % and 80 vol %. The synthesis gas is subjected to a methanol synthesis reactor. The methanol synthesis reactor is utilized to produce a methanol product and a purge gas stream from the synthesis gas.
    Type: Application
    Filed: August 16, 2023
    Publication date: February 22, 2024
    Inventors: Mario E. De La Ossa, JR., Roberto Francisco Iannone, Steven Andrew Leppard, Ralph Maxwell Stock, Charles James Thompson
  • Patent number: 10538986
    Abstract: Techniques and systems to provide pressure reduction of a fluid, for example, from a well. A device includes an input configured to be fluidly coupled to a well control device. The device also includes an output configured to be to be fluidly coupled to the well control device. The device further includes at least one valve configured to alter a pressure of a fluid received at the input and transmitted from the output.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: January 21, 2020
    Assignee: Ensco International Incorporated
    Inventors: Christopher Scott Stewart, Benjamin Matthew Riley, Steven Andrew Leppard, Justin Dow Alcorn
  • Publication number: 20180202253
    Abstract: Techniques and systems to provide pressure reduction of a fluid, for example, from a well. A device includes an input configured to be fluidly coupled to a well control device. The device also includes an output configured to be to be fluidly coupled to the well control device. The device further includes at least one valve configured to alter a pressure of a fluid received at the input and transmitted from the output.
    Type: Application
    Filed: September 18, 2017
    Publication date: July 19, 2018
    Inventors: Christopher Scott Stewart, Benjamin Matthew Riley, Steven Andrew Leppard, Justin Dow Alcorn
  • Patent number: 9361792
    Abstract: Techniques and methods to reduce downtime in an offshore platform, such as an offshore semi-submersible drilling rig or drillship. Through the use of one or more movable platforms in a moon pool area, work on a riser string passing through the moon pool area may be performed without exposing workers directly to the open sea below. Accordingly, the use of the one or more movable platforms in the moon pool area may provide protected access to the riser string during, for example, harsh weather conditions.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: June 7, 2016
    Assignee: Ensco International Incorporated
    Inventors: Richard Robert Roper, Christopher Scott Stewart, Justin Dow Alcorn, Steven Andrew Leppard
  • Publication number: 20150266544
    Abstract: Techniques and methods to reduce downtime in an offshore platform, such as an offshore semi-submersible drilling rig or drillship. Through the use of one or more movable platforms in a moon pool area, work on a riser string passing through the moon pool area may be performed without exposing workers directly to the open sea below. Accordingly, the use of the one or more movable platforms in the moon pool area may provide protected access to the riser string during, for example, harsh weather conditions.
    Type: Application
    Filed: March 20, 2015
    Publication date: September 24, 2015
    Inventors: Richard Robert Roper, Christopher Scott Stewart, Justin Dow Alcorn, Steven Andrew Leppard