Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6516635 | Apparatus and method for making a joint-free Mach-Zehnder interferometer | Yawen Yang | 2003-02-11 |
| 6404521 | Filters to adjust DWDM transmissivity | Yawen Yang, Wenyong Zhu | 2002-06-11 |