Patents by Inventor Stuart Meredith MACDONALD

Stuart Meredith MACDONALD 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).

  • Odorized methane fluid and processes for producing odorized methane fluids and the use thereof
    Patent number: 10544377
    Abstract: An odorized methane comprising fluid has an odorant and a carrier. The odorant is ethyl acrylate and/or ethyl mercaptan. The carrier is propane, n-butane, iso-butane, or a mixture of two or more thereof. The odorized methane-comprising fluid may be prepared by adding the odorant and the carrier separately or pre-mixed to a methane comprising liquid or slush.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: January 28, 2020
    Assignee: SHELL OIL COMPANY
    Inventors: Wouter Martinus Van Der Veer, Stuart Meredith Macdonald
  • Fluid comprising methane and a tracer, and processes for producing it and the use thereof
    Patent number: 10544378
    Abstract: A labelled methane, such as LNG, has methane and a tracer, in the form of a slush of liquids and solids. The invention especially relates to LNG having a tracer. The labelled methane may comprise, in addition to the tracer, an odorant, and a carrier for the odorant. The odorant is ethyl acetate and/or ethyl mercaptan. The carrier for the odorant is propane, n-butane, iso-butane, or a mixture of two or more thereof. A process for preparing the liquid or slush involves liquefying a gas comprising methane and tracer.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: January 28, 2020
    Assignee: SHELL OIL COMPANY
    Inventors: Wouter Martinus Van Der Veer, Stuart Meredith MacDonald
  • FLUID COMPRISING METHANE AND A TRACER, AND PROCESSES FOR PRODUCING IT AND THE USE THEREOF
    Publication number: 20190055486
    Abstract: The present invention relates to a liquid comprising methane and a tracer, and to a slush of liquid and solids comprising methane and a tracer. The invention especially relates to LNG comprising a tracer. The LNG may comprise, in addition to the tracer, an odorant and a carrier for the odorant. The odorant is ethyl acrylate and/or ethyl mercaptan. The carrier for the odorant is propane, n-butane, iso-butane, or a mixture of two or more thereof. The present invention also relates to a process for preparing such a liquid or slush by liquefying a gas comprising methane and a tracer. The invention also relates to a process in which a tracer is added to a methane comprising liquid or slush.
    Type: Application
    Filed: October 20, 2016
    Publication date: February 21, 2019
    Inventors: Wouter Martinus VAN DER VEER, Stuart Meredith MACDONALD
  • ODORIZED METHANE FLUID AND PROCESSES FOR PRODUCING ODORIZED METHANE FLUIDS AND THE USE THEREOF
    Publication number: 20180305630
    Abstract: The present invention relates to an odorized methane comprising liquid, and to an odorized methane comprising slush of liquid and solids. The invention especially relates to odorized LNG. The odorant is ethyl acrylate and/or ethyl mercaptan. The carrier for the odorant is propane, n-butane, iso-butane, or a mixture of two or more thereof. The present invention also relates to a process for preparing such an odorized liquid or slush by liquefying odorized methane comprising gas. The invention also relates to a process in which odorant is added to a methane comprising liquid or slush.
    Type: Application
    Filed: October 20, 2016
    Publication date: October 25, 2018
    Applicant: SHELL OIL COMPANY
    Inventors: Wouter Martinus VAN DER VEER, Stuart Meredith MACDONALD