Patents by Inventor Walker Martin

Walker Martin 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).

  • Downhole isolation tool including an isolation sleeve and sacrificial plug member
    Patent number: 12618304
    Abstract: Provided is a downhole isolation tool, a well system, and a method. The downhole isolation tool, in one aspect, includes an outer housing, the outer housing having a fluid passageway extending along a length thereof, an outer housing exterior surface, and an outer housing interior surface, as well as one or more fluid flow ports connecting the fluid passageway and the outer housing exterior surface. The downhole isolation tool, in one aspect, further includes an isolation sleeve positioned within the fluid passageway, the isolation sleeve configured to shift between an open state and a closed state covering the one or more fluid flow ports and obstructing fluid flow between the fluid passageway and the outer housing exterior surface, as well as a sacrificial plug member fluidly coupled with the fluid passageway, the sacrificial plug member configured to seal fluid flow through the fluid passageway.
    Type: Grant
    Filed: April 29, 2024
    Date of Patent: May 5, 2026
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Walker Martin, Matthew James Kelsey, David Joe Steele
  • DOWNHOLE ISOLATION TOOL INCLUDING AN ISOLATION SLEEVE AND SACRIFICIAL PLUG MEMBER
    Publication number: 20250334024
    Abstract: Provided is a downhole isolation tool, a well system, and a method. The downhole isolation tool, in one aspect, includes an outer housing, the outer housing having a fluid passageway extending along a length thereof, an outer housing exterior surface, and an outer housing interior surface, as well as one or more fluid flow ports connecting the fluid passageway and the outer housing exterior surface. The downhole isolation tool, in one aspect, further includes an isolation sleeve positioned within the fluid passageway, the isolation sleeve configured to shift between an open state and a closed state covering the one or more fluid flow ports and obstructing fluid flow between the fluid passageway and the outer housing exterior surface, as well as a sacrificial plug member fluidly coupled with the fluid passageway, the sacrificial plug member configured to seal fluid flow through the fluid passageway.
    Type: Application
    Filed: April 29, 2024
    Publication date: October 30, 2025
    Inventors: Walker Martin, Matthew James Kelsey, David Joe Steele