Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6850364 | Method and apparatus for an optical multiplexer and demultiplexer with an optical processing loop | Ping Xie, R. Brad Bettman, Haisheng Rong, Kevin Zhang, Yalan Mao +1 more | 2005-02-01 |
| 6845191 | Optical filter for wavelength division multipled optical signals | Ping Xie, Yalan Mao, Wei Wang, R. Brad Bettman, Nadim Maluf | 2005-01-18 |
| 6836581 | Optical filter for wavelength division multipled optical signals | Ping Xie, Yalan Mao, Wei Wang, R. Brad Bettman, Nadim Maluf | 2004-12-28 |
| 6684002 | Method and apparatus for an optical filter | Ping Xie, Yalan Mao, Wei Wang, R. Brad Bettman, Nadim Maluf | 2004-01-27 |