Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8494316 | Device and method for colorless optical switching | Guangyong Zhang | 2013-07-23 |
| 8265480 | Light mark, method and device for light mark modulation and demodulation | — | 2012-09-11 |
| 7603034 | Optical identification demodulation method and system | Congqi Li | 2009-10-13 |