Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1074198 | Storage box | Yingbo Zhang | 2025-05-13 |
| 11679426 | Rolling-bulging forming hydraulic machine for tubular products | Guolu Zheng, Chenguang Cui, Lili Zhang, Chunxiang Zhang | 2023-06-20 |
| 11141773 | Device and method for strengthening thin-walled straight pipe | Yongfei Gu, Weipeng Liu, Lili Zhang, Chunxiang Zhang | 2021-10-12 |
| 11110504 | Method of forming thick-walled cylinder by spinning | Lili Zhang, Jiacheng Yu, Chunxiang Zhang | 2021-09-07 |