Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5817809 | Photographic element containing a coupler capable of releasing a photographically useful group through a triazole group | William J. Begley, Teh-Hsuan Chen | 1998-10-06 |
| 5759757 | Photographic elements containing development inhibitor releasing compounds | William J. Begley, Daniel L. Kapp | 1998-06-02 |
| 5719017 | Photographic element containing a coupler capable of releasing a photographically useful group through a pyrazole group | William J. Begley, 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 | William J. Begley, Teh-Hsuan Chen | 1998-01-20 |
| 5686234 | Photographic element containing a coupler capable of releasing a photographically useful group | William J. Begley, Teh-Hsuan Chen, Donald Singleton, Jr. | 1997-11-11 |
| 5670301 | Photographic element containing a coupler capable of releasing a photographically useful group | William J. Begley, Teh-Hsuan Chen, Donald Singleton, Jr. | 1997-09-23 |
| 5457004 | Photographic element containing a high dye-yield coupler with methine dye chromophore | Jared B. Mooberry, James J. Seifert, David Hoke, Zheng Z. Wu, David T. Southby | 1995-10-10 |
| 5447819 | Photographic element containing high dye-yield couplers having improved reactivity | Jared B. Mooberry, James J. Seifert, David Hoke, Zheng Z. Wu, David T. Southby | 1995-09-05 |
| 5306607 | Photographic material and process comprising a pyrazolotriazole moiety | William J. Begley, Teh-Hsuan Chen, Donald Singleton, Jr. | 1994-04-26 |