Issued Patents 2018
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10107414 | Intermediate bulk container and valve opening/closing device therefor | Zuocheng Qian, Kai Gong | 2018-10-23 |
| 10046892 | Tamper-evident device and valve using same | — | 2018-08-14 |
| 10047875 | Intermediate bulk container and valve opening/closing device therefor | Zuocheng Qian, Kai Gong | 2018-08-14 |
| 10001218 | Hinged valve | Zuocheng Qian | 2018-06-19 |