Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6731392 | Marker used for measuring displacement of moving object and method therefor | Sam Yong Chung, Song Soo Han, Sang Heon Lee, Bum Jae You, Sang Rok Oh +1 more | 2004-05-04 |