Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5697322 | Analog display having electroluminescent pointer | William Hay, Stephen F. Hamann, William C. Sherbrooke | 1997-12-16 |
| 4565969 | Saturation current incipient soot detector | Hartwell F. Calcote | 1986-01-21 |
| 4278441 | Flame sampling apparatus and method | Hartwell F. Calcote | 1981-07-14 |