Issued Patents 2004
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6812452 | Apparatus and method for measuring the wavelength of light present in a light beam | — | 2004-11-02 |
| 6807339 | Wavelength division multiplexing and de-multiplexing system | David W. Wang | 2004-10-19 |
| 6804060 | Interference filter fabrication | David W. Wang | 2004-10-12 |
| 6795459 | Light frequency locker | — | 2004-09-21 |
| 6789738 | Information card system | Erica Tsai | 2004-09-14 |
| 6748138 | Optical grating fabrication | David W. Wang | 2004-06-08 |
| 6731659 | Frequency locker | David W. Wang | 2004-05-04 |
| 6718092 | Frequency detection, tuning and stabilization system | David W. Wang | 2004-04-06 |