Patents by Inventor Johnathan Marshall

Johnathan Marshall 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).

  • Power and/or data connection in a downhole component
    Patent number: 7527105
    Abstract: A downhole component of a tool string, having a first and a second end intermediate a tubular body. First and second collars are mounted to the inner surface of the component at the first and second ends respectively. Each collar has an electrical conductor secured to the collar. The first collar has a bearing surface adapted to slide with respect to the inner surface of the component and the second collar is rotationally fixed to the inner surface of the component.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: May 5, 2009
    Inventors: David R. Hall, Scott Dahlgren, Johnathan Marshall, Tyson J. Wilde
  • Power and/or Data Connection in a Downhole Component
    Publication number: 20080110638
    Abstract: A downhole component of a tool string, having a first and a second end intermediate a tubular body. First and second collars are mounted to the inner surface of the component at the first and second ends respectively. Each collar has an electrical conductor secured to the collar. The first collar has a bearing surface adapted to slide with respect to the inner surface of the component and the second collar is rotationally fixed to the inner surface of the component.
    Type: Application
    Filed: November 14, 2006
    Publication date: May 15, 2008
    Inventors: David R. Hall, Scott Dahigren, Johnathan Marshall, Tyson J. Wilde