Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Charles P. Chang — 1 Patent

Oracle: 1 patents #8,339 of 14,854Top 60%
Sunnyvale, CA: #10,281 of 14,302 inventorsTop 75%
California: #249,524 of 386,348 inventorsTop 65%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Charles P. Chang has been granted 1 US patent while listed as an inventor at Oracle. All of these patents were granted in 2005. Charles P. Chang ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Charles P. Chang in Sunnyvale, CA, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6940514 Parallel initialization path for rasterization engine Michael A. Wasserman, Elena Ing, Vannessa M. Nhan, Nandini Ramani 2005-09-06 $8,461,000