Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5887388 | In-the-room fireplace system | Jeffrey S. Grundy | 1999-03-30 |
| 4280473 | Fireplace having outside air supply | — | 1981-07-28 |
| 4185612 | Heat circulating fireplace | Clifton F. Briner | 1980-01-29 |