Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5645981 | Photographic silver halide materials and process comprising a pyrazolotriazole coupler | Robert F. Romanet, Sharon E. Normandin | 1997-07-08 |
| 5620837 | Color photographic element containing benzazolium compounds | Sang H. Kim, Thomas Joseph Dannhauser | 1997-04-15 |
| 5576158 | Color photographic reversal element with improved color reproduction | Frederick E. Ford, Carl Kotlarchik, Jr. | 1996-11-19 |
| 5561031 | Color reversal elements with incorporated bleach accelerator | — | 1996-10-01 |
| 5411839 | Image formation in color reversal materials using strong inhibitors | John W. Harder, Paul A. Burns, J. Ramon Vargas, Philip D. Knight, William J. Begley +1 more | 1995-05-02 |
| 5378590 | Color photographic reversal element with improved color reproduction | Frederick E. Ford, Carl Kotlarchik, Jr. | 1995-01-03 |
| 5298377 | Photographic element with 2-equivalent magenta dye-forming coupler and filter dye | — | 1994-03-29 |
| 5283340 | Photographic material and process comprising wash-out naphtholic coupler | William J. Begley, Teh-Hsuan Chen, Hans G. Ling, John W. Harder | 1994-02-01 |
| 5164288 | Photographic element containing pyrazoloazole coupler and oxidized developer competitor | John V. Nelson, Terry L. Bistrovich | 1992-11-17 |
| 5151343 | Photographic material and process comprising wash-out naphtholic coupler | William J. Begley, Teh-Hsuan Chen, Hans G. Ling, John W. Harder | 1992-09-29 |
| 5147764 | Photographic element with 2-equivalent 5-pyrazolone and competitor for oxidized developing agent | — | 1992-09-15 |
| 5019489 | Color photographic element and process | — | 1991-05-28 |
| 4992361 | Photographic silver halide materials and process comprising a pyrazolotriazole coupler | Sharon E. Normandin | 1991-02-12 |
| 4960685 | Color photographic element and process | — | 1990-10-02 |
| 4959480 | Photographic silver halide materials and process comprising a pyrazoloazole coupler | Sharon E. Normandin, Nigel E. Milner, David Clarke | 1990-09-25 |
| 4942117 | Photographic silver halide materials and process comprising a pyrazoloazole coupler | Sharon E. Normandin, Nigel E. Milner, David Clarke | 1990-07-17 |
| 4942118 | Photographic silver halide materials and process comprising a pyrazoloazole coupler | Sharon E. Normandin, Nigel E. Milner, David Clarke | 1990-07-17 |
| 4892805 | Photographic element and process | Robert F. Romanet, Sharon E. Normandin | 1990-01-09 |