Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824770 | Continuous tone color imaging using laser or light emitting diode sources | Stephen R. Powers, Keith A. Penfound, Peter J. Finn | 1989-04-25 |
| 4814827 | Photographic color proofing apparatus | Stephen R. Powers, Keith A. Penfound, Peter J. Finn, Michael G. Fisher | 1989-03-21 |