Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Daniel R. Chapman — 1 Patent in 2021

TSTriad National Security: 1 patents #29 of 131Top 25%
Chevron: 1 patents #119 of 352Top 35%
Oakland, CA: #339 of 882 inventorsTop 40%
California: #26,007 of 66,859 inventorsTop 40%
Overall (2021): #486,985 of 548,734Top 90%
1 Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10996203 Detection, monitoring, and determination of location of changes in metallic structures using multimode acoustic signals Alp T. Findikoglu, Taeho Ju 2021-05-04