Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888273 | Stabilized tabular silver halide grain emulsions | Richard S. Himmelwright, Avinash C. Mehta | 1989-12-19 |
| 4873171 | Image-receiving element for diffusion transfer photographic product | Louis J. George | 1989-10-10 |