Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11168822 | Connector assembly for hose connection of hot water mat | Yong Seok Lee | 2021-11-09 |
| 11149870 | Recirculation valve and hot water recirculation system using the same | Chang Heoi Hu, Soon Ki Kim | 2021-10-19 |