Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Chung Chang — 2 Patents

Samsung: 1 patents #49,284 of 75,807Top 70%
Maetan-dong, KR: #1 of 1 inventorsTop 100%
Overall (All Time): #2,157,255 of 4,157,543Top 55%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7213818 Stroller having wheel rotation control device 2007-05-08
4933619 Stepping motor servo control system for a floppy disk drive 1990-06-12