Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Preethi Parasseri Narayanan — 2 Patents in 2021

Amazon: 2 patents #625 of 4,535Top 15%
Cupertino, CA: #382 of 1,477 inventorsTop 30%
California: #13,721 of 66,859 inventorsTop 25%
Overall (2021): #122,011 of 548,734Top 25%
2 Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11087769 User authentication for voice-input devices 2021-08-10 $167,299,000
10887710 Characterizing environment using ultrasound pilot tones 2021-01-05 $219,449,000