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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Leo Francis Casey — 3 Patents in 2021

XDX Development: 3 patents #27 of 191Top 15%
San Francisco, CA: #809 of 7,035 inventorsTop 15%
California: #8,414 of 66,859 inventorsTop 15%
Overall (2021): #73,543 of 548,734Top 15%
3 Patents 2021

Issued Patents 2021

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11085972 Ground fault detection in ungrounded power systems Siyuan Xin 2021-08-10 $70,483,000
11016132 Non-contact detection of electrical energy Siyuan Xin, Peter Evans, Shuyu Wang, Raymond Daly, C. O. Lee Boyce, Jr. +1 more 2021-05-25 $74,324,000
10972649 Infrared and visible imaging system for device identification and tracking Peter Light, Joel Fraser Atwater, Crystal Elayna Winston, Mehrdad Roosta, Siyuan Xin +1 more 2021-04-06 $85,884,000