Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7516622 | Method and apparatus for energy recovery in an environmental control system | Guy D. Covert | 2009-04-14 |
| 6986469 | Method and apparatus for energy recovery in an environmental control system | Guy D. Covert | 2006-01-17 |
| 6637667 | Method and apparatus for energy recovery in an environmental control system | Guy D. Covert | 2003-10-28 |
| 6474084 | Method and apparatus for energy recovery in an environmental control system | Guy D. Covert | 2002-11-05 |
| 6176436 | Method and apparatus for energy recovery in an environmental control system | Guy D. Covert | 2001-01-23 |
| 6062482 | Method and apparatus for energy recovery in an environmental control system | Guy D. Covert | 2000-05-16 |
| 5911747 | HVAC system control incorporating humidity and carbon monoxide measurement | — | 1999-06-15 |