Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
YC

Yi Chang — 2 Patents

APAcbel Polytech: 1 patents #27 of 98Top 30%
HSHoltek Semiconductor: 1 patents #38 of 95Top 40%
NUNational Tsing Hua University: 1 patents #672 of 2,036Top 35%
Hsinchu, TW: #6,741 of 13,380 inventorsTop 55%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Yi Chang has been granted 2 US patents while listed as an inventor at Acbel Polytech. The first was granted in 2012 and the most recent in August 2025. Yi Chang ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Yi Chang in Hsinchu, TW.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12395090 D-mode GaN transistor synchronous rectifier and power converter having the synchronous rectifier Wei-Hua Chieng, Da-Jeng Yao, Li-Chuan Tang, Chih-Chiang Wu, Yueh-Tsung Shieh +1 more 2025-08-19
8106606 Voltage multiple dimming control apparatus Wen-Kuen LIU 2012-01-31