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USPTO Patent Rankings Data through Sept 30, 2025
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Yuwen Su — 3 Patents in 2018

Amazon: 3 patents #387 of 3,429Top 15%
Cupertino, CA: #222 of 1,457 inventorsTop 20%
California: #7,478 of 60,411 inventorsTop 15%
Overall (2018): #50,218 of 503,207Top 10%
3 Patents 2018

Issued Patents 2018

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
10109294 Adaptive echo cancellation Robert Ayrapetian, Philip Ryan Hilmes 2018-10-23
9997151 Multichannel acoustic echo cancellation for wireless applications Robert Ayrapetian, Philip Ryan Hilmes 2018-06-12
9966086 Signal rate synchronization for remote acoustic echo cancellation Kurt Piersol, Preethi Parasseri Narayanan, Robert Ayrapetian, Arnaud Jean-Louis Charton, Gabe Beddingfield +1 more 2018-05-08