Patents by Inventor Malcolm David Finlayson

Malcolm David Finlayson 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).

  • Tubing hanger re-entry tool
    Patent number: 12624607
    Abstract: In at least one embodiment, a system for a re-entry tool to be used with oilfield equipment is disclosed. A stinger that includes flushing holes to enable fluid for flushing through the re-entry tool and into one or more of an Xmas tree head, tubing hanger, or crown plug, is provided in the system. The system includes one or more sleeves external to the stringer. The one or more sleeves include flushing slots to enable circulation of the fluid from the Xmas tree head, tubing hanger, or crown plug to an external environment relative to the Xmas tree head.
    Type: Grant
    Filed: August 13, 2024
    Date of Patent: May 12, 2026
    Assignee: Baker Hughes Energy Technology UK Limited
    Inventors: Brian Craig, Malcolm David Finlayson, Michael Donnelly, Timothy Crowther, Andrew Hughes
  • TUBING HANGER RE-ENTRY TOOL
    Publication number: 20250059846
    Abstract: In at least one embodiment, a system for a re-entry tool to be used with oilfield equipment is disclosed. A stinger that includes flushing holes to enable fluid for flushing through the re-entry tool and into one or more of an Xmas tree head, tubing hanger, or crown plug, is provided in the system. The system includes one or more sleeves external to the stringer. The one or more sleeves include flushing slots to enable circulation of the fluid from the Xmas tree head, tubing hanger, or crown plug to an external environment relative to the Xmas tree head.
    Type: Application
    Filed: August 13, 2024
    Publication date: February 20, 2025
    Applicant: Baker Hughes Energy Technology UK Limited
    Inventors: Brian Craig, Malcolm David Finlayson, Michael Donnelly, Timothy Crowther, Andrew Hughes