Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10773981 | Sewage treatment system having a trickling filter with wash unit | Shigeki Takeda, Tetsutarou Kuruma | 2020-09-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10773981 | Sewage treatment system having a trickling filter with wash unit | Shigeki Takeda, Tetsutarou Kuruma | 2020-09-15 |