Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9621263 | Method, apparatus, node device and network system for detecting optical signal-to-noise ratio | Juan Ni, Zhiyong Feng, Ning Deng | 2017-04-11 |
| 8831422 | Method for generating a probe pulse and coherent optical time domain reflectometer | Zhiyong Feng, Shaofeng Qiu | 2014-09-09 |