Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9759454 | Cascade heat pump | Jaeheuk Choi, Yoonho Yoo | 2017-09-12 |
| 9683767 | Cooling system and control method thereof | Jaeheuk Choi, Yoonho Yoo, Doyong Ha | 2017-06-20 |
| 9599379 | Integral air conditioning system for heating and cooling | Doyong Ha, Yoonho Yoo, Jaeheuk Choi | 2017-03-21 |