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USPTO Patent Rankings Data through Sept 30, 2025
TC

Tsu-Yi Chen

PEPrimax Electronics: 2 patents #20 of 73Top 30%
Overall (2021): #102,882 of 548,734Top 20%
2 Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11145474 Keyboard device and key structure thereof Chin-Sung Pan, Chien-Hung Liu, Lei-Lung Tsai, Sheng-Fan Chang, Chun-Yuan Liu 2021-10-12
10903024 Keyboard device Chun-Yuan Liu, Lei-Lung Tsai 2021-01-26