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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David A. Chen — 1 Patent in 2021

Long Beach, CA: #61 of 193 inventorsTop 35%
California: #26,007 of 66,859 inventorsTop 40%
Overall (2021): #486,927 of 548,734Top 90%
1 Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10881564 Seat assist device Robson L. Splane, Jr. 2021-01-05