Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6116232 | Gas fireplace insert | Lance O'Hearn | 2000-09-12 |
| 5669374 | Direct vent fireplace | Dan Perz | 1997-09-23 |
| 5562088 | Termination device for horizontal direct vent gas fireplaces or the like | Dan Perz, Joseph Yeremian | 1996-10-08 |