Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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JK

Joseph M. Kahan

IBM: 3 patents #26,272 of 70,183Top 40%
Houston, TX: #6,659 of 21,073 inventorsTop 35%
Texas: #40,946 of 125,132 inventorsTop 35%
Overall (All Time): #1,550,261 of 4,157,543Top 40%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8130981 Sound card having feedback calibration loop — 2012-03-06
7522776 Digital video media duplication or transmission quality measurement — 2009-04-21
7394940 Digital video media duplication or transmission quality measurement — 2008-07-01

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