Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11162677 | Air intake coupling with noise suppression for low NOx emission furnace | Darcy Q. Easterling | 2021-11-02 |
| 10753607 | Apparatus and method for sound reduction of high efficiency furnaces | Leonard J. Cook, David Chilson | 2020-08-25 |