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USPTO Patent Rankings Data through Sept 30, 2025
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David Woolsey — 5 Patents in 2021

Berkeley, CA: #35 of 727 inventorsTop 5%
California: #3,968 of 66,859 inventorsTop 6%
Overall (2021): #34,020 of 548,734Top 7%
5 Patents 2021

Issued Patents 2021

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
11047777 Thermophoretic particle concentrator David William Burns 2021-06-29
10948391 Airborne particle detection system with orientation-dependent particle discrimination David William Burns 2021-03-16
10948392 Airborne particle detection system with thermophoretic scanning David William Burns 2021-03-16
10944372 Acoustic resonator Gabriel A. Matus 2021-03-09
10921224 Thermophoretic particle detection system with variable channel geometry David William Burns 2021-02-16