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USPTO Patent Rankings Data through Sept 30, 2025
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Chen Chang

NUNutek: 1 patents #4 of 8Top 50%
Ji'an, TW: #30 of 55 inventorsTop 55%
Overall (All Time): #3,256,380 of 4,157,543Top 80%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
D641342 Bluetooth controller for insertion with car cigarette lighters 2011-07-12