Qing Cheng — 1 Patent at Otis Elevator

Qing Cheng has been granted 1 US patent while listed as an inventor at Otis Elevator. All of these patents were granted in 2021. Qing Cheng ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Qing Cheng in Zhejiang, CN.

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Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
11192756	Safety control device for handrail, conveyor system and safety control method for handrail	Hai Cui, Yi Fang, Xingsong Xu, Xinxiang Jiang, Jiaying CHEN +3 more	2021-12-07

Qing Cheng — 1 Patent

Issued Patents All Time

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