Issued Patents 2019
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10516479 | Feeder fiber and central office redundancy | Liang Du, Yut Loy Chan, Xiangjun Zhao, Changhong Joy Jiang, Cedric Fung Lam +1 more | 2019-12-24 |
| 10439722 | Feeder fiber and central office redundancy | Liang Du, Yut Loy Chan, Xiangjun Zhao, Changhong Joy Jiang, Cedric Fung Lam +1 more | 2019-10-08 |
| 10171199 | Tunable laser in an optical access network | Xiangjun Zhao, Liang Du, Changhong Joy Jiang, Cedric Fung Lam | 2019-01-01 |