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Heping Qiu

OE Otis Elevator: 1 patents #73 of 258Top 30%
Overall (2023): #426,663 of 537,848Top 80%
1
Patents 2023

Issued Patents 2023

Patent #TitleCo-InventorsDate
11577930 Automatic elevator calling system and a method for controlling automatic calling elevator Wenbo Huang, Xiaofei Guo, Haiyan Xue, Renxiang Chen, Lieping Wei +2 more 2023-02-14