Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5374511 | Photographic color couplers and photographic materials containing them | David Clarke | 1994-12-20 |
LL
Llewelyn J. Leyshon
Overall (All Time): #3,813,729 of 4,157,543Top 95%
1
Patents All Time