Patents by Inventor Steven D. Knudsen

Steven D. Knudsen 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).

  • Deployable centralizers
    Patent number: 10344542
    Abstract: A centralizer assembly is disclosed that allows for the assembly to be deployed in-situ. The centralizer assembly includes flexible members that can be extended into the well bore in situ by the initiation of a gas generating device. The centralizer assembly can support a large load carrying capability compared to a traditional bow spring with little or no installation drag. Additionally, larger displacements can be produced to centralize an extremely deviated casing.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: July 9, 2019
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Mark C. Grubelich, Jiann-Cherng Su, Steven D. Knudsen
  • Self-consuming materials
    Patent number: 9656926
    Abstract: A self-consuming structure is disclosed that is formed from a self-consuming composition based on an epoxy or polyurethane having fuel and/or oxidizer molecularly dispersed and/or as particulates in the epoxy or polyurethane. The composition may be used to form self-consuming structural components.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: May 23, 2017
    Assignee: Sandia Corporation
    Inventors: Steven G. Thoma, Mark C Grubelich, Mathias C. Celina, Mark R. Vaughn, Steven D. Knudsen
  • Deployable centralizers
    Patent number: 9580976
    Abstract: A centralizer assembly is disclosed that allows for the assembly to be deployed in-situ. The centralizer assembly includes flexible members that can be extended into the well bore in situ by the initiation of a gas generating device. The centralizer assembly can support a large load carrying capability compared to a traditional bow spring with little or no installation drag. Additionally, larger displacements can be produced to centralize an extremely deviated casing.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: February 28, 2017
    Assignee: Sandia Corporation
    Inventors: Mark C. Grubelich, Jiann-Cherng Su, Steven D. Knudsen