Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11111661 | Method and device for controlling water spouting of toilet | Jin Han, Han-Che Wang | 2021-09-07 |
| 11014742 | Method and device for collecting garbage | Han-Che Wang, Jin Han | 2021-05-25 |