Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11655076 | Liquid transport system and a liner bag and a method of using the same | — | 2023-05-23 |
| 11555544 | Butterfly valve | — | 2023-01-17 |
| 11435009 | Hinged valve | — | 2022-09-06 |
| 11421788 | Valve | — | 2022-08-23 |
| 11383889 | Squeezer and liquid discharge system and method | — | 2022-07-12 |
| 11305933 | Fluid discharge system and squeezer thereof | — | 2022-04-19 |
| 11235922 | Fluid discharge system and squeezer thereof | — | 2022-02-01 |
| 10823292 | Valve | — | 2020-11-03 |
| 10823309 | Retractable handle assembly, valve using the same and intermediate bulk container | Zuocheng Qian, Kai Gong, Qingxin Liao | 2020-11-03 |
| 10641399 | Valve | — | 2020-05-05 |
| 10407239 | Fixing clamp for discharge outlet of intermediate bulk container | — | 2019-09-10 |
| 10107414 | Intermediate bulk container and valve opening/closing device therefor | Zuocheng Qian, Kai Gong | 2018-10-23 |
| 10047875 | Intermediate bulk container and valve opening/closing device therefor | Zuocheng Qian, Kai Gong | 2018-08-14 |
| 10046892 | Tamper-evident device and valve using same | — | 2018-08-14 |
| 10001218 | Hinged valve | Zuocheng Qian | 2018-06-19 |
| 9534693 | Valve with a hinged valve core | Zuocheng Qian, Kai Gong, Fang Yuan, Qingxin Liao | 2017-01-03 |