Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5270854 | Narrow band selective absorption filter | James Cheng Lee, David Greenlaw | 1993-12-14 |
| 5102213 | Narrow band selective absorption filter | James Cheng Lee, David Greenlaw | 1992-04-07 |
| 4935166 | Narrow band selective absorption filter | James Cheng Lee, David Greenlaw | 1990-06-19 |
| 4548473 | Optical filter | Ronald E. Peterson | 1985-10-22 |