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USPTO Patent Rankings Data through Sept 30, 2025
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Si Ming Du — 1 Patent

Beaverton, OR: #2,113 of 3,140 inventorsTop 70%
Oregon: #17,068 of 28,073 inventorsTop 65%
Overall (All Time): #3,516,569 of 4,157,543Top 85%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6589192 Deep tissue massage machine King Chan 2003-07-08