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USPTO Patent Rankings Data through Dec 31, 2025
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Anna Su — 2 Patents in 2018

OEOtis Elevator: 2 patents #39 of 232Top 20%
Shanghai, CN: #301 of 2,595 inventorsTop 15%
Overall (2018): #166,083 of 503,207Top 35%
2 Patents 2018

Issued Patents 2018

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10071884 Detection of state of engagement between step and comb plate of passenger conveyor Jianguo Li, Nigel Morris, Alois Senger, Jianwei Zhao, Zhaoxia Hu +7 more 2018-09-11
10059569 Monitoring system of a passenger conveyor, a passenger conveyor, and a monitoring method thereof Hui Fang, Zhen Jia, Yanzhi Chen, Alan Matthew Finn, Arthur Hsu +6 more 2018-08-28