Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4367284 | Photographic elements with improved surface characteristics | Luigi Cellone, Angelo Vallarino | 1983-01-04 |
RL
Roberto Leoncavallo
Overall (All Time): #4,046,691 of 4,157,543Top 100%
1
Patents All Time