DS

Dongchul Seo

KC Korea Kumho Petrochemical Co.: 1 patents #16 of 59Top 30%
Overall (2003): #233,939 of 273,478Top 90%
1
Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6639036 Acid-labile polymer and resist composition Joohyeon Park, YoungTaek Lim, Hyunsang Joo, SeongDuk Cho, Seongju Kim 2003-10-28