Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857450 | Silver halide photographic materials | Ronald W. Burrows, Keith A. Penfound | 1989-08-15 |
| 4835096 | Sensitizers for photothermographic media | — | 1989-05-30 |
BL
Bernard A. Lea
Overall (1989): #30,710 of 140,708Top 25%
2
Patents 1989