Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12371767 | Hot-working die steel, heat treatment method thereof and hot-working die | Hongliang Yi, Guodong Wang, Xiaochuan Xiong | 2025-07-29 |
| 11772154 | Plunger for die casting and method of making the same | Zhou Wang, Hongliang Yi, Jianfeng Wang | 2023-10-03 |