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SK Showa Shell Sekiyu Kabushiki Kaisha: 1 patents #22 of 60Top 40%
Overall (All Time): #3,904,014 of 4,157,543Top 95%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4929760 Fluorine-containing carbonyl compounds and method for preparing the same Tomoya Kitazume, Takashi Yamazaki 1990-05-29