HX

Haiyan Xue

OE Otis Elevator: 1 patents #73 of 258Top 30%
Overall (2023): #428,606 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, Renxiang Chen, Heping Qiu, Lieping Wei +2 more 2023-02-14