HS

Huaping Sun

OE Otis Elevator: 1 patents #966 of 1,840Top 55%
Overall (All Time): #2,501,420 of 4,157,543Top 65%
1
Patents All Time

Issued Patents All Time

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