Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5681691 | Photographic element containing an improved pyrazolotriazole coupler | Judith A. Bose, Louis E. Friedrich, David Hoke, Robert F. Romanet, Stephen P. Singer +1 more | 1997-10-28 |