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

AMD: 1 patents #6,401 of 9,280Top 70%
San Jose, CA: #17,797 of 32,062 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
Derek Chang has been granted 2 US patents while listed as an inventor at AMD. The first was granted in 1997 and the most recent in September 2019. Derek Chang ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Derek Chang in San Jose, CA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10419011 Timing error measurement in current steering digital to analog converters Roberto Pelliconi, Christophe Erdmann 2019-09-17 $40,750,000
5691956 Memory with fast decoding Edward Chang, Deirdre S. Chang 1997-11-25