Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5191615 | Interrelational audio kinetic entertainment system | Hazen L. MacIntyre | 1993-03-02 |
| 4931738 | Battery monitoring system of cell groups and display | Hazen L. MacIntyre, Richard Daniel Graham | 1990-06-05 |
| 4451762 | Control circuit and system for providing emergency lighting | Don A. Forte | 1984-05-29 |