Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12252288 | Smart heat sealing method for vacuum packaging | Guoqiang Liang, Xiao TANG | 2025-03-18 |
| 12221240 | Vacuum packaging method and vacuum packaging device | Guoqiang Liang, Changhui Lu | 2025-02-11 |
| 11427362 | Vacuum packaging machine | Guoqiang Liang, Linhua Pan, Yuanchao Wu | 2022-08-30 |
| 10988273 | Vacuum packaging machine | Guoqiang Liang, Xiujia Liu, Yuanchao Wu | 2021-04-27 |