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USPTO Patent Rankings Data through Dec 31, 2025
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Chang-Eun Oh — 1 Patent

UNUnknown: 2 patents #12,644 of 83,584Top 20%
Seojong-myeon, KR: #6,436 of 10,205 inventorsTop 65%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Chang-Eun Oh has been granted 1 US patent while listed as an inventor at Unknown. All of these patents were granted in 2014. Chang-Eun Oh ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Chang-Eun Oh in Seojong-myeon, KR.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8920641 End-cap structure of oil filter for vehicle Nam-Woong Lee, Min Su Lee, Kang Seok Kim, Sang Pyo Lee 2014-12-30

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