Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8718707 | Devices, systems, and methods for communicating with rooftop air handling units and other HVAC components | Charles L. Crawford | 2014-05-06 |
| 5417077 | Leaving air temperature control of cooling system | Harrison Thomas Hickenlooper | 1995-05-23 |
| 5417368 | Leaving air temperature control of heating system | Harrison Thomas Hickenlooper | 1995-05-23 |
| 5402845 | Recovery process for heat pump system | Harrison Thomas Hickenlooper | 1995-04-04 |
| 5305953 | Reactive heating control system | Ronald Rayburn | 1994-04-26 |