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

ExxonMobil: 1 patents #5,674 of 10,161Top 60%
Google: 1 patents #14,887 of 22,993Top 65%
Houston, TX: #8,734 of 21,073 inventorsTop 45%
Texas: #52,941 of 125,132 inventorsTop 45%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
David Chang has been granted 2 US patents while listed as an inventor at ExxonMobil. The first was granted in 1996 and the most recent in July 2017. David Chang ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list David Chang in Houston, TX, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9693573 Real-time remote data collecting systems and methods Xue Wang, Bao Hu, Ruguo Hu 2017-07-04
5583825 Method for deriving reservoir lithology and fluid content from pre-stack inversion of seismic data James J. Carrazzone, Catherine Lewis, Pravin M. Shah, David Y. Wang 1996-12-10 $105,378,000