Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6779409 | Measurement of torsional dynamics of rotating shafts using magnetostrictive sensors | Hegeon Kwun, Gary L. Burkhardt | 2004-08-24 |
| 6212944 | Apparatus and method for monitoring engine conditions, using magnetostrictive sensors | Hegeon Kwun, Roy Meyer, Kendall Roger Swenson | 2001-04-10 |
| 5587534 | Wall thickness and flow detection apparatus and method for gas pipelines | Joseph D. McColskey, William P. Dube, Christopher M. Fortunko, Raymond E. Schramm, Martin C. Renken +1 more | 1996-12-24 |
| 5581037 | Nondestructive evaluation of pipes and tubes using magnetostrictive sensors | Hegeon Kwun | 1996-12-03 |
| 5457994 | Nondestructive evaluation of non-ferromagnetic materials using magnetostrictively induced acoustic/ultrasonic waves and magnetostrictively detected acoustic emissions | Hegeon Kwun | 1995-10-17 |
| 5456113 | Nondestructive evaluation of ferromagnetic cables and ropes using magnetostrictively induced acoustic/ultrasonic waves and magnetostrictively detected acoustic emissions | Hegeon Kwun | 1995-10-10 |
| 4503393 | Method and apparatus for detecting flaws in the threaded end of an elongate member using electromagnetic excitation and an automated scanning sensor | Mark C. Moyer, Clifford W. Petersen, Felix N. Kusenberger, William D. Perry, Floyd A. Balter | 1985-03-05 |
| 4497209 | Nondestructive testing of stress in a ferromagnetic structural material utilizing magnetically induced velocity change measurements | Hegeon Kwun | 1985-02-05 |