Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 7016610 | Self-adjusting optical add-drop multiplexer and optical networks using same | Guohua Xiao, Xiaoping Mao, Lintao Zhang | 2006-03-21 | $10,787,000 |
| 6728440 | Method and apparatus for multi-pass photonic processors with circulators and multiple-fiber collimators | Shudong Wu | 2004-04-27 | $10,899,000 |
| 6721509 | Self-adjusting optical add-drop multiplexer and optical networks using same | Guohua Xiao, Xiaoping Mao, Lintao Zhang | 2004-04-13 | $12,819,000 |
| 6490386 | Bidirectional optical amplifier | Thomas Cooney | 2002-12-03 | |
| 6417964 | Reconfigurable automatic gain control and method for optical amplifier | Lintao Zhang, Charles Mao, Guohua Xiao | 2002-07-09 | $2,942,000 |
| 6088142 | System and method for precision wavelength monitoring | Yu Zheng | 2000-07-11 | |
| 5933260 | Method and system for wavelength division multiplexer | Yu Zheng | 1999-08-03 |