Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Barbara Chang — 2 Patents

Ebay: 2 patents #1,016 of 2,086Top 50%
San Francisco, CA: #14,470 of 26,999 inventorsTop 55%
California: #187,151 of 386,348 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Barbara Chang has been granted 2 US patents while listed as an inventor at Ebay. The first was granted in 2012 and the most recent in April 2020. Barbara Chang ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Barbara Chang in San Francisco, CA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10621240 System and method for keyword extraction Alec Reitter, Ken Sun, Raghav Gupta, Alvaro Bolivar, Alan Lewis 2020-04-14 $57,749,000
8200662 System and method for application programming interfaces for keyword extraction and contextual advertisement generation Alec Reitter, Ken Sun, Raghav Gupta, Alvaro Bolivar, Alan Lewis 2012-06-12 $55,046,000