Issued Patents All Time
Showing 1–25 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6458521 | Color photographic element containing coupler useful for forming neutral silver-based image | Stephen P. Singer, Janet N. Younathan, Jerrold N. Poslusny, Susan D. Hill, Anabisdally I. Bodden | 2002-10-01 |
| 6136522 | Photographic element containing pyrazoloazole coupler and a specific anti-fading combination | Stanley W. Cowan | 2000-10-24 |
| 6048680 | Photographic element containing pyrazoloazole coupler and a specific anti-fading combination | Franklin D. Saeva, Daniel L. Kapp, Stanley W. Cowan, Michael W. Fichtner | 2000-04-11 |
| 6004738 | Photographic elements containing cyan dye-forming coupler, coupler solvent and bisphenol derivative | Stanley W. Cowan, David Clarke, Llewellyn J. Leyshon | 1999-12-21 |
| 5965342 | Photographic elements containing specified cyan dye-forming couplers for improved heat and light stability | Stanley W. Cowan | 1999-10-12 |
| 5962198 | Photographic elements containing cyan dye-forming coupler having a particular formula | Stanley W. Cowan, Louis J. Rossi | 1999-10-05 |
| 5888716 | Photographic element containing improved coupler set | James L. Edwards, Stanley W. Cowan | 1999-03-30 |
| 5842063 | Camera and film for recording overlapping images | Gilbert A. Hawkins, Annabel A. Muenter, John D. Baloga | 1998-11-24 |
| 5834166 | Photographic element containing a particular cyan dye-forming coupler | Stanley W. Cowan, David Hoke | 1998-11-10 |
| 5726002 | Photographic element containing a particular cyan coupler dispersed in a phenolic solvent | Stanley W. Cowan | 1998-03-10 |
| 5686235 | Photographic elements containing cyan dye-forming coupler having a sulfone ballast group | Stanley W. Cowan, Louis J. Rossi | 1997-11-11 |
| 5681689 | Photographic material containing acrylate or acrylamide based yellow dye-forming couplers | Stanley W. Cowan | 1997-10-28 |
| 5674666 | Photographic elements containing new cyan dye-forming coupler providing improved color reproduction | Louis J. Rossi, Stanley W. Cowan | 1997-10-07 |
| 5670302 | Photographic elements containing new magenta dye-forming couplers | Louis J. Rossi, Stanley W. Cowan | 1997-09-23 |
| 5654132 | Photographic materials and process comprising ureido naphtholic cyan couplers | Stanley W. Cowan | 1997-08-05 |
| 5614357 | Photographic element containing a particular cyan coupler bearing a sulfonyl containing ballast | Stanley W. Cowan | 1997-03-25 |
| 5523199 | Photographic element and process employing magenta azine dye-forming couplers | Rakesh K. Jain | 1996-06-04 |
| 5508148 | Photographic element containing a novel cyan dye forming coupler and process for its use | Thomas H. Jozefiak, Thomas R. Welter | 1996-04-16 |
| 5476757 | Photographic element containing a novel cyan dye forming coupler and process for its use | Thomas H. Jozefiak, Thomas R. Welter | 1995-12-19 |
| 5457020 | Photographic material and process comprising a bicyclic pyrazolo coupler | Ping-Wah Tang, Stanley W. Cowan | 1995-10-10 |
| 5457008 | Photographic element containing a novel cyan dye forming coupler and process for its use | Thomas H. Jozefiak, Thomas R. Welter | 1995-10-10 |
| 5427898 | Yellow couplers having an arloxy coupling-off group which contains an ortho polarizable functional group | Ping-Wah Tang, Stanley W. Cowan, Terrence C. Mungal | 1995-06-27 |
| 5382502 | Hydroxyquinoline cyan couplers and their process of production | Danny R. Thompson, Stanley W. Cowan | 1995-01-17 |
| 5360713 | Yellow dye-forming couplers and color photographic elements containing these couplers | Ping-Wah Tang, Stanley W. Cowan | 1994-11-01 |
| 5358835 | Photographic elements containing new yellow-dye-forming tris couplers | Ping-Wah Tang, Stanley W. Cowan | 1994-10-25 |