Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5358837 | Photographic elements containing new magenta-dye-forming bis couplers | Ping-Wah Tang, Philip T. S. Lau, Stanley W. Cowan | 1994-10-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5358837 | Photographic elements containing new magenta-dye-forming bis couplers | Ping-Wah Tang, Philip T. S. Lau, Stanley W. Cowan | 1994-10-25 |