Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7683611 | Pipeline inspection using variable-diameter remote-field eddy current technology | Gary L. Burkhardt, Albert J. Parvin, Ronald H. Peterson, Todd Goyen, Richard Franklin Tennis | 2010-03-23 |
| 7557570 | System and method for producing color contour maps of surface defects of high pressure pipelines | Todd Goyen, Patrick C. Porter, Shawn Laughlin | 2009-07-07 |
| 7154264 | System and method using a collapsable coil for inspection of pipelines having internal restrictions | Gary L. Burkhardt, Jay L. Fisher | 2006-12-26 |
| 7038444 | System and method for in-line stress measurement by continuous Barkhausen method | Gary L. Burkhardt | 2006-05-02 |
| 6624628 | Method and apparatus generating and detecting torsional waves for long range inspection of pipes and tubes | Hegeon Kwun, Sang-Young Kim | 2003-09-23 |
| 6239593 | Method and system for detecting and characterizing mechanical damage in pipelines using nonlinear harmonics techniques | Gary L. Burkhardt | 2001-05-29 |