Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Ernan Liu — 2 Patents

Qualcomm: 2 patents #5,578 of 12,104Top 50%
San Diego, CA: #11,944 of 23,606 inventorsTop 55%
California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #2,061,987 of 4,157,543Top 50%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8897455 Microphone array subset selection for robust noise reduction Erik Visser 2014-11-25
8620672 Systems, methods, apparatus, and computer-readable media for phase-based processing of multichannel signal Erik Visser 2013-12-31