Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10048225 | Apparatus and method for inspection of tubes in a boiler | Hegeon Kwun, Matthew Capps, Stanley M. Walker | 2018-08-14 |
| 9146215 | Apparatus and method for inspection of tubes in a boiler | Hegeon Kwun, Matthew Capps, Stanley M. Walker | 2015-09-29 |
| 7852073 | Method and device for long-range torsional guided-wave inspection of piping with a partial excitation and detection around the pipe circumference | Hegeon Kwun, Hirotoshi Matsumoto | 2010-12-14 |
| 7474092 | Method and device for long-range guided-wave inspection of fire side of waterwall tubes in boilers | Hegeon Kwun, Hirotoshi Matsumoto | 2009-01-06 |
| 7421915 | Nondestructive inspection apparatus | Tadashi Yamane, Yasuhiko Katsube, Takashi Sato, Albert J. Parvin, Rolf Glauser | 2008-09-09 |
| 7019520 | Method and system for torsional wave inspection of heat exchanger tubes | Hegeon Kwun, Sang-Young Kim | 2006-03-28 |
| 6917196 | Method and apparatus generating and detecting torsional wave inspection of pipes or tubes | Hegeon Kwun, Sang-Young Kim, Myoung-Seon Choi | 2005-07-12 |
| 6429650 | Method and apparatus generating and detecting torsional wave inspection of pipes or tubes | Hegeon Kwun, Sang-Young Kim | 2002-08-06 |