Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9140450 | Retrofitted corrosive resistant venting system | Eric Adair | 2015-09-22 |
| 8672367 | Exhaust system interlocking mechanism | Eric Adair, Steven McIntyre | 2014-03-18 |
| 8505981 | Gasket-less vent pipe coupling | Eric Adair | 2013-08-13 |
| 8408196 | Ceiling support box with outside air inlet | Eric Adair | 2013-04-02 |
| 8230849 | Wall thimble with outside air inlet | Eric Adair | 2012-07-31 |
| 8156931 | Direct vent cap | Eric Adair | 2012-04-17 |
| 8056552 | Wall thimble with outside air inlet | Eric Adair | 2011-11-15 |
| 7665457 | Wall thimble with outside air inlet | Eric Adair | 2010-02-23 |
| D552725 | Vent cap | Eric Adair | 2007-10-09 |
| D552726 | Direct vent cap | Eric Adair | 2007-10-09 |
| 4846147 | Chimney liner system | Donald M. Townsend | 1989-07-11 |
| 4608963 | Thermally balanced air flow chimney | Donald M. Townsend | 1986-09-02 |
| 4385623 | Flue pipe for fireplace stove | — | 1983-05-31 |
| 4362511 | J Bolt | — | 1982-12-07 |