Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4791274 | Electric finned-tube baseboard space heater employing a vaporized working fluid | — | 1988-12-13 |
| D281811 | Space heater | — | 1985-12-17 |
| 4518847 | Electrically-powered portable space heater | Charles D. Hoyt | 1985-05-21 |
| D277780 | Space heater | Charles D. Hoyt, Joseph E. Velazquez | 1985-02-26 |