Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9573082 | Upper-layer cleaning device for water treatment device, and method for cleaning water treatment device filter layer | Tadao Oiwa, Hui Cai | 2017-02-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9573082 | Upper-layer cleaning device for water treatment device, and method for cleaning water treatment device filter layer | Tadao Oiwa, Hui Cai | 2017-02-21 |