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USPTO Patent Rankings Data through Sept 30, 2025
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Yutaro Kiku

EAE.I. Du Pont De Nemours And: 2 patents #2,942 of 8,010Top 40%
Overall (All Time): #2,315,569 of 4,157,543Top 60%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5031076 Multifunctional card having a static protection 1991-07-09
5005106 Multifunctional card having an electromagnetic wave protection 1991-04-02