Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
EC

Eric J. Chang — 1 Patent

Microsoft: 1 patents #24,968 of 40,388Top 65%
Beijing, CN: #16,408 of 27,914 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Eric J. Chang has been granted 1 US patent while listed as an inventor at Microsoft. All of these patents were granted in 2012. Eric J. Chang ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Eric J. Chang in Beijing, CN.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8326630 Context based online advertising Raman Chandrasekar, Tian Bai, Michael Tsang 2012-12-04 $15,162,000