Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8113269 | Multi-channel heat exchanger | — | 2012-02-14 |
| 7802984 | System and method for combustion-air modulation of a gas-fired heating system | — | 2010-09-28 |
| 7744366 | System and method for improving the thermal efficiency of a heating system | — | 2010-06-29 |
| 7726386 | Burner port shield | — | 2010-06-01 |
| 7494337 | Apparatus and method for providing multiple stages of fuel | Steve Dunlap | 2009-02-24 |
| 6938688 | Compact high efficiency clam shell heat exchanger | Philip Lengauer, Donald G. Warren, Dominick J. DiMaggio | 2005-09-06 |
| 6889686 | One shot heat exchanger burner | — | 2005-05-10 |
| 6334439 | Tubular heat exchanger for infrared heater | Philip Lengauer | 2002-01-01 |
| 6109255 | Apparatus and method for modulating the firing rate of furnace burners | John T. Dieckmann, David H. McFadden, Gautum Gauba | 2000-08-29 |
| 5421774 | Exhaust vent adapter for use with multiple heating units | — | 1995-06-06 |
| RE34826 | Waste oil delivery system | — | 1995-01-17 |
| 5080579 | Apparatus for preheating waste oil | — | 1992-01-14 |
| 5058512 | Waste oil delivery system | — | 1991-10-22 |