Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6948454 | Airflow apparatus | Dennis R. Hughes, Kevin Field | 2005-09-27 |
| 6745724 | Water heater having flue damper with airflow apparatus | Dennis R. Hughes, Kevin Field | 2004-06-08 |