Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12085192 | Straight-stroke no-material-loss high-temperature normal-pressure filler sealing structure | Yushan Ma, Haixia SU, Zhiyun Feng, Runhai Hou | 2024-09-10 |
| 10821465 | Spherical core spraying tool | Yushan Ma, Jun Li, Yongxing Zhou, Yongxiang Ding, Husheng Li | 2020-11-03 |