Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9651266 | Gas hot water heating device and system | Dayan Bi, Baolin Liu | 2017-05-16 |
| 9568213 | Storeage gas water heater | Dayan Bi, Liliang Dou, Xiangcai Zeng, Chaojun Yang | 2017-02-14 |