Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4342668 | Photochromic compounds | Richard J. Hovey, Nori Y. C. Chu, Charles H. Fuchsman | 1982-08-03 |
| 4215010 | Photochromic compounds | Richard J. Hovey, Nori Y. C. Chu, Charles H. Fuchsman | 1980-07-29 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4342668 | Photochromic compounds | Richard J. Hovey, Nori Y. C. Chu, Charles H. Fuchsman | 1982-08-03 |
| 4215010 | Photochromic compounds | Richard J. Hovey, Nori Y. C. Chu, Charles H. Fuchsman | 1980-07-29 |