Preethi Parasseri Narayanan has been granted 15 US patents while listed as an inventor at Amazon . The first was granted in 2016 and the most recent in June 2025. Preethi Parasseri Narayanan ranks #307,048 of 4,157,543 US inventors in our database (top 7.4%). Patent records list Preethi Parasseri Narayanan in Cupertino, CA, US.
Patents per Year Patents granted per year, 2016 to 2025 Bar chart with a peak of 3 patents in 2016. peak 3 2016: 3 patents 2016 2018: 3 patents 2018 2019: 1 patents 2019 2020: 1 patents 2020 2021: 2 patents 2021 2022: 1 patents 2022 2024: 2 patents 2024 2025: 2 patents 2025
Issued Patents All Time
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Showing 1–15 of 15 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
12330023 Platform for visual tracking of user fitness Karina Levitian , Sunil Ramesh , Michael Cutter 2025-06-17
12230279 User authentication for voice-input devices — 2025-02-18
12087318 Voice controlled system Michael Alan Pogue , Kavitha Velusamy , Tony David , Philip Ryan Hilmes 2024-09-10
$381,332,000
11951357 Platform for visual tracking of user fitness Karina Levitian , Sunil Ramesh , Michael Cutter 2024-04-09
$40,415,000
11501792 Voice controlled system Michael Alan Pogue , Kavitha Velusamy , Tony David , Philip Ryan Hilmes 2022-11-15
$192,729,000
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
10878836 Voice controlled system Michael Alan Pogue , Kavitha Velusamy , Tony David , Philip Ryan Hilmes 2020-12-29
$232,145,000
10515653 Voice controlled system Michael Alan Pogue , Kavitha Velusamy , Tony David , Philip Ryan Hilmes 2019-12-24
$105,018,000
10147441 Voice controlled system Michael Alan Pogue , Kavitha Velusamy , Tony David , Philip Ryan Hilmes 2018-12-04
$108,575,000
9966086 Signal rate synchronization for remote acoustic echo cancellation Kurt Piersol , Robert Ayrapetian , Arnaud Jean-Louis Charton , Gabe Beddingfield , Michael Alan Pogue +1 more 2018-05-08
$101,998,000
9865268 User authentication for voice-input devices — 2018-01-09
$69,985,000
9373318 Signal rate synchronization for remote acoustic echo cancellation Kurt Piersol , Robert Ayrapetian , Arnaud Jean-Louis Charton , Gabe Beddingfield , Michael Alan Pogue +1 more 2016-06-21
$73,626,000
9319816 Characterizing environment using ultrasound pilot tones — 2016-04-19
$77,771,000
9286899 User authentication for devices using voice input or audio signatures — 2016-03-15
$54,047,000
