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USPTO Patent Rankings Data through Dec 31, 2025
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Duan Liang — 1 Patent

OEOtis Elevator: 1 patents #966 of 1,840Top 55%
Farmington, CT: #224 of 372 inventorsTop 65%
Connecticut: #21,465 of 34,797 inventorsTop 65%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Duan Liang has been granted 1 US patent while listed as an inventor at Otis Elevator. All of these patents were granted in 2021. Duan Liang ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Duan Liang in Farmington, CT, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11124386 Safety brake configuration for elevator application Richard N. Fargo, Tahany Ibrahim El-Wardany, James M. Draper, Xiaodong Luo, Joe J. Liou 2021-09-21

Frequent Collaborators

Richard N. Fargo1 shared
Xiaodong Luo1 shared
James M. Draper1 shared
Joe J. Liou1 shared
Tahany Ibrahim El-Wardany1 shared

Nearby-Ranked Inventors

Andrew Whitesides Lloyd1
Xianwu Meng1
Phillip COLETTI1
Yuchen Mao1
Sheng'an ZHANG1
Hayeong Nam1
Pedro Fernando Gomez Fernandez1
Kira Astakhova1
Amir EISEN1