Issued Patents 2025
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12305654 | Fully automatic device for pumping cold air into block-stone subgrade | Yasheng Li, Zhi Wen, Fei Wang | 2025-05-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12305654 | Fully automatic device for pumping cold air into block-stone subgrade | Yasheng Li, Zhi Wen, Fei Wang | 2025-05-20 |