Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10228162 | Four pass high efficiency furnace and heat exchanger | Eric R. Bruton, Matthew William Reese | 2019-03-12 |
| 8459342 | Heat exchanger tube with integral restricting and turbulating structure | Michael J. O'Donnell | 2013-06-11 |
| 8021143 | Furnace | — | 2011-09-20 |
| 7850448 | Furnace | — | 2010-12-14 |
| 7255155 | Heat exchanger tube with integral restricting and turbulating structure | Michael J. O'Donnell | 2007-08-14 |
| 6916174 | Gas burner | Michael J. O'Donnell, Frank T. Szucs, Jr., Jim Bedford, Wayne Hollingshead | 2005-07-12 |
| 6688378 | Heat exchanger tube with integral restricting and turbulating structure | Michael J. O'Donnell | 2004-02-10 |
| 6371753 | Gas burner | Michael J. O'Donnell, Frank T. Szucs, Jr. | 2002-04-16 |
| 4559594 | Electrostatic air cleaner and high voltage power source therefor | Lawrence M. Sears | 1985-12-17 |