Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5663040 | Silver halide photographic elements containing 2-equivalent 5-pyrazolone magenta couplers | Massimo Bertoldi, Enzo Coraluppi, Ferdinando Orengo | 1997-09-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5663040 | Silver halide photographic elements containing 2-equivalent 5-pyrazolone magenta couplers | Massimo Bertoldi, Enzo Coraluppi, Ferdinando Orengo | 1997-09-02 |