Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE33146 | Occupancy responsive temperature control system | Edwin A. Carrell | 1990-01-16 |
| 4485864 | Occupancy responsive temperature control system | Edward A. Carrell | 1984-12-04 |