Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
CK

Chun-Hsien Kao

Overall (All Time): #2,315,905 of 4,157,543Top 60%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5008933 Automatic sterilizing device of the telephone Fu-Te Chen 1991-04-16
4748698 Stool cover with smell eliminator 1988-06-07