Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7313296 | Optical fiber protection switch | Xiaojun Fang, Li-Ping Chen | 2007-12-25 |
| 7003189 | Optical fiber protection switch | Xiaojun Fang, Li-Ping Chen | 2006-02-21 |
| 6771849 | Optical fiber protection switch | Xiaojun Fang, Li-Ping Chen | 2004-08-03 |
| 6504963 | Optical fiber protection switch | Xiaojun Fang, Li-Ping Chen | 2003-01-07 |