Issued Patents 2024
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11993485 | Lifting device for building steel structure hoistway and method for building steel structure hoistway | Fei Chen, Gangliang Chen, Zheng Lu, Huaping Sun, Yanchong Wang +3 more | 2024-05-28 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11993485 | Lifting device for building steel structure hoistway and method for building steel structure hoistway | Fei Chen, Gangliang Chen, Zheng Lu, Huaping Sun, Yanchong Wang +3 more | 2024-05-28 |