Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4591725 | System for amplifying all frequencies detected from a flame detector | — | 1986-05-27 |
| 4575333 | Flame monitor time delay control | — | 1986-03-11 |
| 4540886 | Fail-safe monitoring system | — | 1985-09-10 |
| 4361763 | Smoke detectors | John H. Howes, Dennis W. S. Smout | 1982-11-30 |
| 4336454 | Smoke detector ionisation chamber using nickel-63 source | Mark A. Janicki | 1982-06-22 |
| 4336455 | Smoke detectors | — | 1982-06-22 |