Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12031728 | Gas fired window heater | Jessie W. Johnson, Gary M. Sly, Jacob S. Weidie | 2024-07-09 |
| 7563306 | High efficiency heating and drying using shielded radiant heater | Charles A. Boutall | 2009-07-21 |
| 5947113 | Direct vent gas appliance with vertical and horizontal venting | Thomas J. Beal, Robert E. Cabrera, Michael E. Marusak | 1999-09-07 |
| 5320086 | Direct vent gas appliance with vertical and horizontal venting | Thomas J. Beal, Robert E. Cabrera | 1994-06-14 |