Issued Patents 2021
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11149983 | Hot water boiler with vortex guide | — | 2021-10-19 |
| 11041662 | Instantaneous water heater having guide portion | — | 2021-06-22 |
| 11035588 | Boiler with heating blower | — | 2021-06-15 |
| 11022341 | Storage type electric water heater with hot air generating function | — | 2021-06-01 |
| 10928099 | Boiler with gas sensing and earthquake sensing function and control method thereof | Sung Hwan Choi | 2021-02-23 |
| 10900693 | Hot water storage boiler having scale prevention function | — | 2021-01-26 |