Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8581152 | Multi-zone heating system | William J. Hansen, Terence T. Smith | 2013-11-12 |
| 8217316 | Multi-zone heating system | William J. Hansen, Terence T. Smith, Praveen Kumar Rai | 2012-07-10 |