YL

Yijin Luo

OE Otis Elevator: 1 patents #64 of 199Top 35%
Overall (2024): #209,718 of 561,600Top 40%
1
Patents 2024

Issued Patents 2024

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11993485 Lifting device for building steel structure hoistway and method for building steel structure hoistway Hualiang Xu, Fei Chen, Gangliang Chen, Zheng Lu, Huaping Sun +3 more 2024-05-28