HC

Hsiang-Wen Cheng

PE Primax Electronics: 2 patents #17 of 76Top 25%
Overall (2020): #166,951 of 565,922Top 30%
2
Patents 2020

Issued Patents 2020

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10658135 Keyboard key structure that generates an operation sound Sheng-An Tsai, Li-Jen Chien 2020-05-19
10658137 Key structure Sheng-An Tsai, Li-Jen Chien 2020-05-19