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USPTO Patent Rankings Data through Sept 30, 2025
HC

Hsi-Hai Chien — 1 Patent

Overall (All Time): #3,623,742 of 4,157,543Top 90%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6102148 Electrically powered bicycle driving mechanism 2000-08-15