Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857450 | Silver halide photographic materials | Ronald W. Burrows, Bernard A. Lea | 1989-08-15 |
| 4828962 | High contrast scanner photographic elements employing ruthenium and iridium dopants | Nicholas E. Grzeskowiak | 1989-05-09 |
| 4824770 | Continuous tone color imaging using laser or light emitting diode sources | Jonathan P. Kitchin, Stephen R. Powers, Peter J. Finn | 1989-04-25 |
| 4814827 | Photographic color proofing apparatus | Jonathan P. Kitchin, Stephen R. Powers, Peter J. Finn, Michael G. Fisher | 1989-03-21 |