Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5374511 | Photographic color couplers and photographic materials containing them | Llewelyn J. Leyshon | 1994-12-20 |
| 5284739 | Photographic silver halide color material having incorporated therein a ballasted heterocyclic-sulphonhydrazide color developing agent | John D. Goddard, Paul L. Stanley, Nigel E. Milner | 1994-02-08 |