EZ

Enwel Zhang

OE Otis Elevator: 1 patents #966 of 1,840Top 55%
Overall (All Time): #3,093,574 of 4,157,543Top 75%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8660700 Video-based system and method of elevator door detection Zhen Jia, Pel-Yuan Peng, Feng Chen, Zisheng CAO 2014-02-25