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USPTO Patent Rankings Data through Dec 31, 2025
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Chih-Ming Chang — 2 Patents in 2021

QIQisda: 2 patents #6 of 85Top 8%
Tainan, TW: #179 of 842 inventorsTop 25%
Overall (2021): #174,414 of 548,734Top 35%
2 Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11128217 Power management system utilizing bypass device 2021-09-21
10967798 Control device and method for image display Chao-Shun Yu 2021-04-06