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USPTO Patent Rankings Data through Sept 30, 2025
WK

Walter Kellerman

GBGrundig Multimedia B.V.: 1 patents #2 of 14Top 15%
Eckental, DE: #77 of 135 inventorsTop 60%
Overall (All Time): #3,419,944 of 4,157,543Top 85%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7062041 Device and method for carrying out multichannel acoustic echo cancellation with a variable number of channels Herbert Buchner 2006-06-13