Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12252288 | Smart heat sealing method for vacuum packaging | Zhicun Yin, Xiao TANG | 2025-03-18 |
| 12221240 | Vacuum packaging method and vacuum packaging device | Zhicun Yin, Changhui Lu | 2025-02-11 |
| 12172782 | Packaging box | Qingchang Dai, Haiyu Liang | 2024-12-24 |
| 11634541 | Catalyst for synthesizing polyethylene oxide polymer and synthesis method thereof | — | 2023-04-25 |
| 11427362 | Vacuum packaging machine | Linhua Pan, Yuanchao Wu, Zhicun Yin | 2022-08-30 |
| 11091416 | Catalyst for preparing propylene glycol phenyl ether and method for synthesizing propylene glycol phenyl ether | — | 2021-08-17 |
| 10988273 | Vacuum packaging machine | Xiujia Liu, Yuanchao Wu, Zhicun Yin | 2021-04-27 |
| 7757857 | Plastic bag for vacuum packing | — | 2010-07-20 |