Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5263892 | High efficiency heat exchanger system with glycol and refrigerant loops | — | 1993-11-23 |
| 5189887 | Heat condensing furnace with de-intensifier tubes | — | 1993-03-02 |
| 4995241 | High efficiency heat exchanger | — | 1991-02-26 |
| 4825664 | High efficiency heat exchanger | — | 1989-05-02 |
| 4461345 | Heat-augmented heat exchanger system | — | 1984-07-24 |
| 4458665 | Heat exchanger with baffle plates | — | 1984-07-10 |
| 4442890 | Heat exchanger housing with fan operated door | — | 1984-04-17 |
| 4441546 | Method of operating a heat-augmented heat pump system | — | 1984-04-10 |
| 4429734 | Heat exchanger coil | — | 1984-02-07 |
| 4420034 | Heat-augmented heat exchanger | — | 1983-12-13 |
| 4415023 | Heat exchanger housing with air deflecting baffle and hinge door | — | 1983-11-15 |
| 4311191 | Heat-augmented heat exchanger | — | 1982-01-19 |
| 4311192 | Heat-augmented heat exchanger | — | 1982-01-19 |