SY

Sang-chul Yim

YL Yukong Limited: 1 patents #21 of 83Top 30%
📍 Seoul, KR: #24,369 of 39,741 inventorsTop 65%
Overall (All Time): #3,784,681 of 4,157,543Top 95%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5468263 Fuel composition containing alkylphenyl poly(oxyalkylene) polyamine acid ester Hyun-jong Chung, Bon-Chul Ku, Ho-young Guen, Duk-han Kim 1995-11-21