Patents by Inventor Stephen Christoffersen

Stephen Christoffersen 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).

  • Pipeline inspection system
    Patent number: 6813949
    Abstract: The present invention relates generally to a system of addressing pipeline anomalies prior to failure of pipeline integrity, and particularly to a pipeline inspection system integrating a novel serviceability acceptance criteria for pipeline anomalies, specifically wrinkles, with an improved method of correlating ultrasonic test data to actual anomaly characteristics.
    Type: Grant
    Filed: March 21, 2002
    Date of Patent: November 9, 2004
    Assignee: Mirant Corporation
    Inventors: Richard Masaniello, Dennis Johnston, Stephen Christoffersen, Arthur Turner, John Broussard, John Kiefner
  • Pipeline inspection system
    Publication number: 20040031337
    Abstract: The present invention relates generally to a system of addressing pipeline anomalies prior to failure of pipeline integrity, and particularly to a pipeline inspection system integrating a novel serviceability acceptance criteria for pipeline anomalies, specifically wrinkles, with an improved method of correlating ultrasonic test data to actual anomaly characteristics.
    Type: Application
    Filed: March 21, 2002
    Publication date: February 19, 2004
    Inventors: Richard Masaniello, Dennis Johnston, Stephen Christoffersen, Arthur Turner, John Broussard, John Kiefner