Issued Patents All Time
Showing 51–58 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5978116 | Programmable wavelength router | Jian Liu | 1999-11-02 |
| 5963291 | Optical attenuator using polarization modulation and a feedback controller | Jian Liu, Yen-Chen Chen | 1999-10-05 |
| 5946116 | 1 X N digitally programmable optical routing switch | Jian Liu | 1999-08-31 |
| 5912748 | Switchable wavelength router | Jian Liu | 1999-06-15 |
| 5867291 | Programmable wavelength router | Jian Liu | 1999-02-02 |
| 5724165 | Fault-tolerant optical routing switch | — | 1998-03-03 |
| 5694233 | Switchable wavelength router | Jian Liu | 1997-12-02 |
| 5606439 | Tunable add/drop optical filter | — | 1997-02-25 |