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USPTO Patent Rankings Data through Sept 30, 2025
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Ching-Yu Wang — 1 Patent in 2021

DEDarfon Electronics: 1 patents #10 of 39Top 30%
Overall (2021): #493,872 of 548,734Top 95%
1 Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11108393 Optical keyswitch triggered by support mechanism having at least one rotatable frame enable a protrusion to move along with a key cap Chen Yang, Yu-Chun Hsieh, Yung-Chih Wang, Chia-Hung Liu, Li-Te Chang 2021-08-31