Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6348304 | Impact resistant photographic element | Thaddeus S. Gula, Richard C. McElroy | 2002-02-19 |
| 5460928 | Photographic element containing particular blue sensitized tabular grain emulsion | Drake M. Michno, John D. Buhr | 1995-10-24 |
| 5358840 | Tabular grain silver iodobromide emulsion of improved sensitivity and process for its preparation | Eleanor Chaffee, Allen K. Tsaur, David E. Fenton, Donald L. Black | 1994-10-25 |
| 5272048 | Reversal photographic elements containing tabular grain emulsions | Sang H. Kim, Allen K. Tsaur, Jacob I. Cohen, Richard A. Demauriac, George H. Hawks, III +1 more | 1993-12-21 |
| 5252453 | Process for accelerating the precipitation of a low coefficient of variation emulsion | Allen K. Tsaur, Sang H. Kim | 1993-10-12 |
| 5236817 | Tabular grain emulsion containing reversal photographic elements exhibiting improved sharpness in underlying layers | Sang H. Kim, Allen K. Tsaur, Jacob I. Cohen, Richard A. Demauriac, George H. Hawks, III +1 more | 1993-08-17 |
| 5210013 | Very low coefficient of variation tabular grain emulsion | Allen K. Tsaur | 1993-05-11 |
| 5171659 | Process of preparing a reduced dispersity tabular grain emulsion | Allen K. Tsaur | 1992-12-15 |
| 5147771 | Process of preparing a reduced dispersity tabular grain emulsion | Allen K. Tsaur | 1992-09-15 |
| 5147772 | Process of preparing a reduced dispersity tabular grain emulsion | Allen K. Tsaur | 1992-09-15 |
| 5147773 | Process of preparing a reduced dispersity tabular grain emulsion | Allen K. Tsaur | 1992-09-15 |