Patents by Inventor Theodore Robert Ohrn

Theodore Robert Ohrn 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).

  • Internally insulated, corrosion resistant pipeline
    Patent number: 6116290
    Abstract: An internally insulated, corrosion resistant pipeline. An inner fluid barrier is formed preferably by a polymer liner. The outer pipe may be a steel pipe. The liner is provided with a plurality of passages or an open annulus. The passages in the liner or annulus between the pipe and liner are filled with an insulation material.
    Type: Grant
    Filed: March 16, 1999
    Date of Patent: September 12, 2000
    Assignee: J. Ray McDermott, S.A.
    Inventors: Theodore Robert Ohrn, Leland Harris Taylor, Jr.