CK

Chen Kan-Nan

CJ Cj: 1 patents #101 of 175Top 60%
Overall (All Time): #3,704,431 of 4,157,543Top 90%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5842905 Process for making a temporary color change on a plastic material James S. W. Lee, Chiu Keung Kwan, Chiu Kien-Wan 1998-12-01