Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1059481 | Bead spinner | Shuijing Zhu | 2025-01-28 |
| 10077657 | Compound-type tunneling shield | Jianbin Li | 2018-09-18 |
| 9016801 | Earth pressure balance shield machine without cutter disk | Jianbin Li | 2015-04-28 |
| 9016983 | Method for preventing shield casing jamming due to too large frictional resistance in earth pressure balance shield machine | Jianbin Li, Shunhui Tan | 2015-04-28 |
| 8696068 | Cutting device with function of changing diameter in small range for soft rock shield machine | Jianbin Li | 2014-04-15 |