Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12276945 | Method for compensating for frequency shifts caused by variations in environmental parameter of atomic clock | Songbai Kang, Dou Li, Kangqi LIU | 2025-04-15 |
| 6571592 | Rolling mill with roll deflection bi-dimensionally controlled | Hongzhuan Zheng | 2003-06-03 |
| 6260397 | Rolling mill with roll deflection bi-dimensionally controlled | Hongzhuan Zheng | 2001-07-17 |