Patents by Inventor Friedheim Schlawne

Friedheim Schlawne 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).

  • Process and apparatus for detecting discontinuities on long workpieces
    Patent number: 5113697
    Abstract: Process and apparatus for the detection of discontinuities in long workpieces such as pipes, tubes, rods and bars using vibrational transducer equipment transmitter pulses in separate directions about the workpiece.
    Type: Grant
    Filed: January 12, 1990
    Date of Patent: May 19, 1992
    Assignee: Mannesmann AG
    Inventor: Friedheim Schlawne