Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10284931 | Liquid crystal grating-based optical switch | Chongchang Mao, Sichao Wang | 2019-05-07 |
| 9927678 | Variable optical attenuator comprising a switchable polarization grating | Chongchang Mao, Hong-Kook Min | 2018-03-27 |
| 9201286 | Method and apparatus for wavelength selective switch | Chongchang Mao, Bo Chen, Yang Fang | 2015-12-01 |
| 9008470 | Method and apparatus for wavelength selective switch | Chongchang Mao, Bo Chen, Yang Fang | 2015-04-14 |
| 7034979 | Variable optical attenuator using crystal wedges | Wei Feng, Chongchang Mao, Tirun Lin, Shuxin Li, Ming Xu +1 more | 2006-04-25 |