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USPTO Patent Rankings Data through Sept 30, 2025
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Yuk-Chung Eric Kam — 1 Patent in 2021

Amazon: 1 patents #1,401 of 4,535Top 35%
Bethesda, MD: #60 of 259 inventorsTop 25%
Maryland: #1,105 of 3,967 inventorsTop 30%
Overall (2021): #195,073 of 548,734Top 40%
1 Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11206143 Digital certificates with distributed usage information Stefan Popoveniuc, David Ripton, Alexandr Ukrainchik, Mikhail Denisenko, Robert Eric Fitzgerald +2 more 2021-12-21