Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5325218 | Cholesteric polarizer for liquid crystal display and overhead projector | Stephen J. Willett | 1994-06-28 |
| 5302985 | Overhead projector for LCD panel | James K. Kennedy, Michael C. Sweaton | 1994-04-12 |
| 5231434 | Overhead projector for LCD panel | James K. Kennedy, Michael C. Sweaton | 1993-07-27 |