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

CLCloudblue: 1 patents #5 of 11Top 50%
IMIngram Micro: 1 patents #14 of 35Top 40%
Palo Alto, CA: #5,765 of 9,675 inventorsTop 60%
California: #187,151 of 386,348 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
David Hou Chang has been granted 2 US patents while listed as an inventor at Cloudblue. The first was granted in 2020 and the most recent in January 2022. David Hou Chang ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list David Hou Chang in Palo Alto, CA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11223613 Methods and systems for roles and membership management in a multi-tenant cloud environment Swarup Das, David Wippich 2022-01-11
10812619 System and method for bulk user service assignment using CSV David Wippich, Swarup Das, Amit Roy, Abhisek Mallick, Debabrata Howlee 2020-10-20