Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693458 | Photographic elements containing certain yellow dye-forming couplers | Robert Gourley, Hamish McNab, Craig Cameron Sommerville | 1997-12-02 |
| 5674667 | Photographic element containing pyrroloylacetamide yellow coupler | Hamish McNab, Craig Cameron Sommerville | 1997-10-07 |
| 5667946 | Photographic material containing magenta dye forming coupler | Jane S. Boff, Paul L. Stanley, Christina M. Watts, Stephen P. Singer | 1997-09-16 |