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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David Duane Chapman — 2 Patents in 2018

IEInterstate Electronics: 2 patents #2 of 4Top 50%
Willow View Lane, CA: #5 of 45 inventorsTop 15%
California: #12,239 of 60,411 inventorsTop 25%
Overall (2018): #156,940 of 503,207Top 35%
2 Patents 2018

Issued Patents 2018

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10107919 Satellite positioning system receivers with microelectromechanical systems oscillators Steven B. Alexander 2018-10-23
9979420 Receiver with multi-spectrum parallel amplification 2018-05-22