Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11421946 | Heat exchanger and water heating apparatus including the same | Norihide Wada | 2022-08-23 |
| 11243033 | Heat exchanger and water heating apparatus including same | — | 2022-02-08 |