CY

Chang-Chi Yang

CA Chroma Ate: 1 patents #88 of 219Top 45%
Overall (All Time): #4,154,828 of 4,157,543Top 100%
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Patent #TitleCo-InventorsDate
10508969 Method and device for testing air tightness Po-Kai Cheng, Chi-Shu Wang 2019-12-17