Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6819826 | Optical switch | Sean Chang | 2004-11-16 |
| 6771425 | System capable of changing wavelength and intensity of output light | Sean Chang | 2004-08-03 |
| 6700706 | Fabry-perot optical filter device | Sean Chang | 2004-03-02 |