Patents by Inventor Patrick Hannigan

Patrick Hannigan 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).

  • Stab guide
    Patent number: 7275594
    Abstract: A tool string stab guide for axially aligning first tool string components with second tool string components is disclosed. The stab guide has a body with an axial length along a longitudinal axis with a first and a second section. The first section of the body adapted for removable attachment within a diameter of a bore of a tool string component. The second section of the body has a centering element with a flow channel. The ratio of the axial length to the diameter is at least 2:1.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: October 2, 2007
    Assignee: IntelliServ, Inc.
    Inventors: David R. Hall, James McPherson, Patrick Hannigan
  • Stab Guide
    Publication number: 20070023190
    Abstract: A tool string stab guide for axially aligning first tool string components with second tool string components is disclosed. The stab guide has a body with an axial length along a longitudinal axis with a first and a second section. The first section of the body adapted for removable attachment within a diameter of a bore of a tool string component. The second section of the body has a centering element with a flow channel. The ratio of the axial length to the diameter is at least 2:1.
    Type: Application
    Filed: July 29, 2005
    Publication date: February 1, 2007
    Inventors: David Hall, James McPherson, Patrick Hannigan