Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11692401 | Multi-impeller passive-rotating-stirring-type rotary drilling rig for open caissons | Shaoju Zhang, Zhenan Jin, Shuyou Zhang | 2023-07-04 |
| 11364529 | Variable-diameter full-support mandrel structure with slider-type cross section for preventing reverse rotation of ratchet wheel | Shuyou Zhang, Zili Wang, Mengyu Fu | 2022-06-21 |
| 11331709 | Elastic double-support variable-diameter mandrel for bending of aircraft engine-specific metal conduit | Shuyou Zhang, Zili Wang, Mengyu Fu | 2022-05-17 |