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

Chung-Hsiung Yu

Overall (All Time): #1,285,390 of 4,157,543Top 35%
4 Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5732957 Roller skate with auxiliary roller for assisting turning and braking action thereof 1998-03-31
5192088 Roller skate with device for assisting the turning and braking action thereof 1993-03-09
5184834 Skate shoe having an adjustable plate mounted thereto 1993-02-09
4966377 Roller skate 1990-10-30