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USPTO Patent Rankings Data through Sept 30, 2025
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David Hepple

OCOasis Co.: 1 patents #10 of 14Top 75%
Columbia, MD: #452 of 1,501 inventorsTop 35%
Maryland: #10,129 of 35,612 inventorsTop 30%
Overall (All Time): #1,484,867 of 4,157,543Top 40%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
10121460 Humidifier and digital hygrometer/thermometer — 2018-11-06
8220782 Humidifier — 2012-07-17
8087645 Humidifier — 2012-01-03

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