Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5696529 | Flat panel monitor combining direct view with overhead projection capability | Leroy B. Keely, Steven G. Siefert | 1997-12-09 |
| 5593221 | Overhead projector for flat panel display capability | Leroy B. Keely, Steven G. Siefert | 1997-01-14 |