Issued Patents All Time
Showing 51–75 of 82 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5543277 | Photographic elements containing scavengers for oxidized developing agent | John W. Harder | 1996-08-06 |
| 5492799 | Azopyrazolone masking couplers | Daniel L. Kapp, Robert J. Ross, Bernard A. Clark | 1996-02-20 |
| 5478712 | Photographic elements protected against color contamination and dye stain | Susan D. Hill | 1995-12-26 |
| 5466568 | Photographic element containing an azopyrazolone masking coupler exhibiting reduced fog | Daniel L. Kapp, Robert J. Ross, Janet N. Younathan | 1995-11-14 |
| 5462848 | Color photographic materials including magenta coupler, inhibitor-releasing coupler and carbonamide compound, and methods | Paul B. Merkel | 1995-10-31 |
| 5455150 | Color photographic negative elements with enhanced printer compatibility | Jared B. Mooberry, Paul B. Merkel | 1995-10-03 |
| 5447831 | Photographic element employing hue correction couplers | Jared B. Mooberry | 1995-09-05 |
| 5441851 | Use of heterocyclic nitrogen addenda to reduce continued coupling of magenta dye-forming couplers | Paul B. Merkel | 1995-08-15 |
| 5411841 | Photographic elements containing magenta couplers and process for using same | Paul B. Merkel, Bernard A. Clark, Paul L. Stanley | 1995-05-02 |
| 5389504 | Color photographic elements containing a combination of pyrazolone and pyrazoloazole couplers | Hans G. Ling, Drake M. Michno | 1995-02-14 |
| 5376519 | Photographic material containing a coupler composition comprising magenta coupler, phenolic solvent, and at least one aniline or amine | Paul B. Merkel | 1994-12-27 |
| 5364745 | Azoaniline masking couplers for photographic materials | Jared B. Mooberry, James J. Seifert, Robert J. Ross, Daniel L. Kapp | 1994-11-15 |
| 5358828 | Photographic element and process comprising a bleach accelerator releasing compound | William J. Begley, David T. Southby, Donald Singleton, Jr. | 1994-10-25 |
| 5350667 | Photographic elements containing magenta couplers and process for using same | Paul B. Merkel, Bernard A. Clark, Paul L. Stanley | 1994-09-27 |
| 5318879 | Photographic element comprising a bleach accelerator releasing compound | William J. Begley, David T. Southby, Donald Singleton, Jr. | 1994-06-07 |
| 5300406 | Photographic element comprising a combination of a development inhibiting releasing coupler and a bleach accelerator releasing compound | William J. Begley, David T. Southby, Donald, Jr. Singleton | 1994-04-05 |
| 5298368 | Photographic coupler compositions and methods for reducing continued coupling | Paul B. Merkel, Edward Schofield | 1994-03-29 |
| 5262292 | Photographic elements containing pyrazolone couplers and process | Sundaram Krishnamurthy, Thomas A. Rosiek, Vincent J. Flow, III, David S. Bailey, David J. Giacherio +1 more | 1993-11-16 |
| 5262284 | Arylidene pyrazolone coupler | Philip T. S. Lau, Danny R. Thompson | 1993-11-16 |
| 5256528 | Magenta image-dye couplers of improved hue | Paul B. Merkel, Bernard A. Clark, Paul L. Stanley | 1993-10-26 |
| 5250405 | Color photographic materials including magenta coupler, inhibitor-releasing coupler and carbonamide compound, and methods | Paul B. Merkel | 1993-10-05 |
| 5246820 | Carbamic acid solubilized smearing couplers | Jared B. Mooberry, James J. Seifert | 1993-09-21 |
| 5200309 | Color photographic materials including magenta coupler, carbonamide compound and aniline or amine compound, and methods | Paul B. Merkel | 1993-04-06 |
| 5118594 | Photographic elements containing removable couplers | Gregory J. Lestina, Jon D. Bass, John W. Harder | 1992-06-02 |
| 5051343 | Photographic elements containing removable couplers | Gregory J. Lestina, Jon D. Bass, John W. Harder | 1991-09-24 |