QC

QingXi Cai

OE Otis Elevator: 5 patents #308 of 1,840Top 20%
Overall (All Time): #799,971 of 4,157,543Top 20%
6
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
D1039409 Escalator smart traffic flow lighting device Lilong Shi, Shunqiang Zhou, Sihua Ling, Denghui Zhang 2024-08-20
11831165 Hierarchical control method for island power grid energy storage system for increasing new energy generation fluctuation Jian Yang, Jianhua Lv, Guode Ying, Zuofu Jiang, Xin Wang +16 more 2023-11-28
10865074 Handrail automatically tensioning system and a method for adjusting tension level of handrail Jianguo Li, Xin Wei, Jie Hu, Lifei Cheng, ZuAn Tang +1 more 2020-12-15
10427914 Elevator synchronous door knife Xiaobo ZHANG, XiaoXiao Dong, Chong Chen 2019-10-01
10189680 Landing-door door lock device Yongtao Yang, Huanfeng Liu, Chong Chen, Hua Zhang, Junfeng Wu 2019-01-29
10040669 Asynchronous door knife of elevator integrated car door lock Xiaobo ZHANG, XiaoXiao Dong, Minchao Chen, Senyuan Qiao 2018-08-07