Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Sourja Ray — 4 Patents

KTKeysight Technologies: 3 patents #75 of 567Top 15%
TITexas Instruments: 1 patents #7,388 of 12,488Top 60%
Cupertino, CA: #2,992 of 6,989 inventorsTop 45%
California: #126,026 of 386,348 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Sourja Ray has been granted 4 US patents while listed as an inventor at Keysight Technologies. The first was granted in 2003 and the most recent in May 2018. Sourja Ray ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Sourja Ray in Cupertino, CA, US.

Patents per Year

Patents granted per year, 2003 to 2018Bar chart with a peak of 1 patents in 2003.peak 12003: 1 patents20032015: 1 patents20152017: 1 patents20172018: 1 patents2018

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9985641 Systems and methods for evaluating errors and impairments in a digital-to-analog converter Jacky Liu 2018-05-29 $19,258,000
9634680 Large-error detection and correction of digital sample sequence from analog-to-digital converter Brian D. Setterberg 2017-04-25 $12,752,000
9143147 Calibration of inter-slice gain and offset errors in time-interleaved analog-to- digital converter John P. Keane 2015-09-22 $29,622,000
6611163 Switched capacitor scheme for offset compensated comparators Subhashish Mukherjee, Sumeet Mathur 2003-08-26 $47,542,000