Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10488077 | Furnace inducer elbow, gas furnace system having elbow, and method of manufacturing elbow | John N. Abel | 2019-11-26 |
| 10006662 | Condensing heat exchanger fins with enhanced airflow | Paul M. Haydock, Larry D. Rieke | 2018-06-26 |