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In Chul Sung

KC Kumho Tire Co.: 1 patents #27 of 70Top 40%
Overall (All Time): #4,142,455 of 4,157,543Top 100%
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Patent #TitleCo-InventorsDate
10442259 Tire with self-inflation device Seong-Jong PARK, Sang Do Na, Hyoung Seok Kim 2019-10-15