Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6813021 | Method and apparatus for monitoring optical signal-to-noise ratio (OSNR) using polarization-nulling method | Yun Chur Chung, Chul Han Kim, Dae-Kwang Jung | 2004-11-02 |