Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9106333 | Method and apparatus for testing optical fiber and passive optical network system | Zebin Li, Changliang Yu, Shengping Li | 2015-08-11 |
| 8780340 | Optical time domain reflectometer test signal modulation circuit, and passive optical network system and apparatus using same | Zebin Li, Shengping Li, Changliang Yu | 2014-07-15 |