JP

Joonbum Pyun

KC Korea Kumho Petrochemical Co.: 1 patents #168 of 342Top 50%
Overall (All Time): #3,206,319 of 4,157,543Top 80%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8173725 Asphalt modifier compositions with an improved melting rate and modified asphalt prepared using the same Seung-Han Choen, Jun-Sang Park, Sunwoo Cheen 2012-05-08