Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5315417 | Low noise transmission holographic optical element | John E. Wreede | 1994-05-24 |
| 5278008 | Diffraction efficiency control in holographic elements | Kevin Yu, John E. Wreede | 1994-01-11 |