Issued Patents 2019
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10279440 | Precision forming method of high-efficiency and near-net hollow valve blank of engine | Jinping Liu, Hongchao JI, Zhenghuan Hu, Baoyu Wang, Tao Zhang +4 more | 2019-05-07 |