Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11180820 | Hot-work die steel and a preparation method thereof | Jinfeng Huang, Jin Zhang, Cheng Zhang, Chao Zhao, Yong Lian | 2021-11-23 |
| 11182469 | Application security authentication method, terminal and storage medium | Shaohai Liu, Wanqiang Lan, Heyu Nie | 2021-11-23 |