Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6790585 | Method for developing a high contrast photographic material containing a polyhydrazide nucleating agent | Siu C. Tsoi, John D. Goddard, Llewellyn J. Leyshon | 2004-09-14 |
| 6673528 | Ascorbic acid developing compositions containing sugar and methods of use | Shirleyanne E. Haye, Janet M. Huston | 2004-01-06 |