HS

Huaping Sun

OE Otis Elevator: 1 patents #64 of 199Top 35%
Overall (2024): #438,861 of 561,600Top 80%
1
Patents 2024

Issued Patents 2024

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, Yanchong Wang +3 more 2024-05-28