Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12405024 | Heat pump control systems and methods | Andrew Leroy Hjortland | 2025-09-02 |
| 11953216 | Ventilation controller | Robert W. Helt | 2024-04-09 |
| 11236762 | Variable geometry of a housing for a blower assembly | Madhuka Manuranga Jayarathne, Hongdan Wang, Robert E. Cabrera, Paul J. Lucas | 2022-02-01 |
| 11199334 | Ventilation controller | Robert W. Helt | 2021-12-14 |
| 10969123 | Control of residential HVAC equipment for dehumidification | Wayne N. Kraft, Jason Thomas LeRoy | 2021-04-06 |
| 9267717 | System and method of charge management | Gary L. Sapp, Darryl E. Denton, Jason Thomas LeRoy, John Bailey | 2016-02-23 |
| 9115907 | Ventilation controller | Robert W. Helt | 2015-08-25 |
| 8961282 | Ventilation controller | Robert W. Helt | 2015-02-24 |
| 8702482 | Ventilation controller | Robert W. Helt | 2014-04-22 |
| 8091375 | Humidity control for air conditioning system | — | 2012-01-10 |