Patents by Inventor Hans-Christian Freitag

Hans-Christian Freitag 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).

  • Apparatus and method for mechanical caliper measurements during drilling and logging-while-drilling operations
    Patent number: 7389828
    Abstract: A caliper tool used on a drilling tubular and having extensible members that remain decoupled with respect to the borehole wall during caliper measurements and while the extensible members are extended to allow movement in and through the borehole. A processor processes known and measured information to determine the size and shape of the borehole. Formation evaluation instruments may be included to allow formation evaluation substantially simultaneously with the caliper measurements.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: June 24, 2008
    Assignee: Baker Hughes Incorporated
    Inventors: Rene Ritter, Hans-Christian Freitag, Hans-Juergen Faber, James Kinney
  • Apparatus and method for mechanical caliper measurements during drilling and logging-while-drilling operations
    Publication number: 20060249307
    Abstract: A caliper tool used on a drilling tubular and having extensible members that remain decoupled with respect to the borehole wall during caliper measurements and while the extensible members are extended to allow movement in and through the borehole. A processor processes known and measured information to determine the size and shape of the borehole. Formation evaluation instruments may be included to allow formation evaluation substantially simultaneously with the caliper measurements.
    Type: Application
    Filed: January 31, 2006
    Publication date: November 9, 2006
    Applicant: Baker Hughes Incorporated
    Inventors: Rene Ritter, Hans-Christian Freitag, Hans-Juergen Faber, James Kinney