Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4220708 | Photochromic compounds | — | 1980-09-02 |
| 4186002 | Photochromic compounds for hologram recording | Peter Waterworth, Rodney J. Hurditch | 1980-01-29 |
| 4182629 | Photochromic compounds | — | 1980-01-08 |