HS

Ho-Ching Sun

UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #2,932,414 of 4,157,543Top 75%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9578405 Electronic speech aid device Wen-Tsung Sun, HO-I SUN 2017-02-21