Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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David C. Brewer

ERElectronics Research: 1 patents #6 of 18Top 35%
San Diego, CA: #15,630 of 23,606 inventorsTop 70%
California: #247,236 of 386,348 inventorsTop 65%
Overall (All Time): #3,936,054 of 4,157,543Top 95%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4860185 Integrated uninterruptible power supply for personal computers Conrad Lindberg, Paul M. Lindberg 1989-08-22