Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7564246 | Pressure sensor using field emission of carbon nano-tube | In Mook Choi, Sam Yong Woo | 2009-07-21 |
| 7392686 | Calibration apparatus for vacuum gauge having combined use of 1 Torr level, 10 Torr level, and 100 Torr level | Sam Yong Woo, In Mook Choi | 2008-07-01 |