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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Rou-An Lai — 1 Patent

UNUnknown: 1 patents #29,356 of 83,584Top 40%
Keelung, TW: #374 of 650 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Rou-An Lai has been granted 1 US patent while listed as an inventor at Unknown. All of these patents were granted in 2017. Rou-An Lai ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Rou-An Lai in Keelung, TW.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9599097 Fluid power generating apparatus Chih-Hung Wei, Hao Wei, Hao Wei, Chi-Che Hsu, Chih-Ying Huang +3 more 2017-03-21