Issued Patents 1997
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5681691 | Photographic element containing an improved pyrazolotriazole coupler | Judith A. Bose, Louis E. Friedrich, David Hoke, Joan C. Potenza, Robert F. Romanet +1 more | 1997-10-28 |
| 5667946 | Photographic material containing magenta dye forming coupler | Jane S. Boff, Bernard A. Clark, Paul L. Stanley, Christina M. Watts | 1997-09-16 |
| 5641613 | Photographic element containing an azopyrazolone masking coupler exhibiting improved keeping | Jane S. Boff | 1997-06-24 |
| 5629140 | Photographic elements containing scavengers for oxidized developing agent | John W. Harder, John V. Nelson | 1997-05-13 |
| 5612173 | One equivalent couplers and low PKA release dyes | Gary S. Proehl, J. Michael Buchanan | 1997-03-18 |
| 5599656 | Photographic materials having releasable compounds | Drake M. Michno, Richard P. Szajewski | 1997-02-04 |