Issued Patents All Time
Showing 51–75 of 91 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6132947 | Cyan coupler, and stabilizer-containing photographic element and process | James S. Honan, Rakesh K. Jain, John W. Harder | 2000-10-17 |
| 6043012 | Color negative photographic elements with modified scavenging compound distributions | Allan F. Sowinski, Stephen P. Singer | 2000-03-28 |
| 6043378 | Photographic elements containing development inhibitor releasing compounds | Frank D. Coms, Daniel L. Kapp | 2000-03-28 |
| 6007974 | Silver halide element containing triazole inhibitors | Frank D. Coms, Teh-Hsuan Chen, Donald Singleton, Jr. | 1999-12-28 |
| 5989793 | Color negative photographic elements with modified scavenging compound distributions | Allan F. Sowinski, Stephen P. Singer | 1999-11-23 |
| 5962656 | Indazole containing coupler | Teh-Hsuan Chen, Donald Singleton, Jr., Frank D. Coms | 1999-10-05 |
| 5932407 | Color photographic element containing oxidized developer-scavenging naphtholic coupler forming wash-out dye | Stephen P. Singer, Allan F. Sowinski | 1999-08-03 |
| 5912110 | Photographic coupler capable of releasing a photographically useful group | Teh-Hsuan Chen, Frank D. Coms, Donald Singleton, Jr. | 1999-06-15 |
| 5834604 | Photographic element containing a coupler capable of releasing a photograpically useful group through a pyrazole group | Frank D. Coms, Teh-Hsuan Chen, Donald Singleton, Jr. | 1998-11-10 |
| 5817809 | Photographic element containing a coupler capable of releasing a photographically useful group through a triazole group | Frank D. Coms, Teh-Hsuan Chen | 1998-10-06 |
| 5759757 | Photographic elements containing development inhibitor releasing compounds | Frank D. Coms, Daniel L. Kapp | 1998-06-02 |
| 5719017 | Photographic element containing a coupler capable of releasing a photographically useful group through a pyrazole group | Frank D. Coms, Teh-Hsuan Chen, Donald Singleton, Jr. | 1998-02-17 |
| 5709987 | Photographic element containing a coupler capable of releasing a photographically useful group through a triazole group | Frank D. Coms, Teh-Hsuan Chen | 1998-01-20 |
| 5686234 | Photographic element containing a coupler capable of releasing a photographically useful group | Teh-Hsuan Chen, Donald Singleton, Jr., Frank D. Coms | 1997-11-11 |
| 5670301 | Photographic element containing a coupler capable of releasing a photographically useful group | Teh-Hsuan Chen, Frank D. Coms, Donald Singleton, Jr. | 1997-09-23 |
| 5411839 | Image formation in color reversal materials using strong inhibitors | John W. Harder, Paul A. Burns, J. Ramon Vargas, Arlyce T. Bowne, Philip D. Knight +1 more | 1995-05-02 |
| 5362880 | Method of preparing a magenta development inhibitor releasing coupler | — | 1994-11-08 |
| 5358828 | Photographic element and process comprising a bleach accelerator releasing compound | Stephen P. Singer, David T. Southby, Donald Singleton, Jr. | 1994-10-25 |
| 5352570 | Method and photographic material and process comprising a benzotriazole compound | — | 1994-10-04 |
| 5334490 | Magenta development inhibitor releasing coupler | Teh-Hsuan Chen, David S. Bailey | 1994-08-02 |
| 5318879 | Photographic element comprising a bleach accelerator releasing compound | Stephen P. Singer, David T. Southby, Donald Singleton, Jr. | 1994-06-07 |
| 5306607 | Photographic material and process comprising a pyrazolotriazole moiety | Teh-Hsuan Chen, Frank D. Coms, Donald Singleton, Jr. | 1994-04-26 |
| 5300406 | Photographic element comprising a combination of a development inhibiting releasing coupler and a bleach accelerator releasing compound | Stephen P. Singer, David T. Southby, Donald, Jr. Singleton | 1994-04-05 |
| 5288593 | Photographic material and process comprising a coupler capable of forming a wash-out dye (Q/Q) | Drake M. Michno, Hans G. Ling, Teh-Hsuan Chen | 1994-02-22 |
| 5286859 | Method of forming a photographic washout coupler (BARC) using a strong base | Donald Singleton, Jr. | 1994-02-15 |