Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5603312 | Direct vent wood burning fireplace | Mark Champion | 1997-02-18 |
| 5186385 | Thermally activated vent damper | Tadeusz Karabin | 1993-02-16 |
| 5082172 | Thermally activated vent damper | Tadeusz Karabin | 1992-01-21 |