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USPTO Patent Rankings Data through Sept 30, 2025
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Walx Fang — 2 Patents

UMUnited Microelectronics: 2 patents #1,942 of 4,560Top 45%
Overall (All Time): #2,196,286 of 4,157,543Top 55%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6820029 Method for determining failure rate and selecting best burn-in time Charlie Han 2004-11-16
6388460 Alternate timing wafer burn-in method Charlie Han 2002-05-14