Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5654123 | Multilayer color photographic element containing a solubilized blocked dye moiety | Xiqiang Yang, Zbyslaw R. Owczarczyk | 1997-08-05 |
| 5622818 | Color photographic elements containing yellow colored magenta dye forming masking couplers | Janet N. Younathan, Robert J. Ross, James P. Merrill | 1997-04-22 |
| 5591569 | Photographic element containing an azopyrazolone masking coupler exhibiting improved keeping | Janet N. Younathan | 1997-01-07 |