Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10041721 | Heat pump comprising primary defrost operation and secondary defrost operation and method of operating heat pump | Yi Qu, Chris McHugh, Mark Olsen | 2018-08-07 |
| 10018400 | Defrost operation management in heat pumps | Yi Qu, Mark Olsen | 2018-07-10 |