Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5696289 | Blocked leuco dyes for photothermographic elements | Larry R. Krepski, Kim M. Vogel | 1997-12-09 |
| 5663042 | Developing agents for (photo) thermographic systems | Duncan M. A. Grieve, Justine A. Mooney, William E. Bottomley, John H. A. Stibbard, Andrew Mott +9 more | 1997-09-02 |
| 5637449 | Hydrogen atom donor compounds as contrast enhancers for black-and-white photothermographic and thermographic elements | Lori S. Harring, Francis H. Sansbury | 1997-06-10 |