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TSAI-YU YU

PE Primax Electronics: 1 patents #319 of 571Top 60%
Overall (All Time): #2,695,042 of 4,157,543Top 65%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11508222 Doorbell system HUNG-CHEN WU, Teng-Chieh Yang 2022-11-22