Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5057769 | AC current sensor | — | 1991-10-15 |
| 4411725 | Daylight film splicer | John H. Siegel | 1983-10-25 |
| 4188511 | Multi-link telephone intercom system | Maurice I. Smith, John D. Gillen | 1980-02-12 |