Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8380070 | Upgrading method, system and apparatus of low-density wavelength division multiplexing system | Congqi Li, Zhiyong Huang, Zhiwen Chang, Da He, Jianmei Zhang +4 more | 2013-02-19 |
| 7580635 | Method, apparatus and system for optical communications | Weishi Li, Qianjin Xiong, Jun Luo, Tianhai Chang, Dianjun Xiao +1 more | 2009-08-25 |