Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4972257 | Operator adjustable color image processing | David Birnbaum | 1990-11-20 |
| 4970562 | Color image processing apparatus | David Birnbaum, Timothy M. Hunter, Larry A. Kovnat, Paul G. Roetling | 1990-11-13 |