Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6488024 | Wood heater | — | 2002-12-03 |
| 6308701 | Combustion system | Dennis R. Jaasma | 2001-10-30 |
| 6216684 | Wood heater | — | 2001-04-17 |
| 6067979 | Combustion system | Dennis R. Jaasma | 2000-05-30 |
| 5701882 | Fireplace with ceramic fiber duct | — | 1997-12-30 |
| 5617842 | Fireplace with outer housing cooling system | — | 1997-04-08 |
| 5603312 | Direct vent wood burning fireplace | Frank H. Broome | 1997-02-18 |