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USPTO Patent Rankings Data through Dec 31, 2025
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Liu Yu — 2 Patents

OEOtis Elevator: 2 patents #650 of 1,840Top 40%
Beijing, CN: #11,144 of 27,914 inventorsTop 40%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Liu Yu has been granted 2 US patents while listed as an inventor at Otis Elevator. The first was granted in 2022 and the most recent in December 2023. Liu Yu ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Liu Yu in Beijing, CN.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11836995 Traffic list generation for passenger conveyance Feng Chen, Xiangyu Wang, Zhen Jia, Hui Fang, Arthur Hsu +1 more 2023-12-05
11232312 Traffic list generation for passenger conveyance Feng Chen, Xiangyu Wang, Zhen Jia, Hui Fang, Arthur Hsu +1 more 2022-01-25

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