Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Henry Easter — 2 Patents

EAE.I. Du Pont De Nemours And: 2 patents #5,216 of 12,129Top 45%
Atkins, AR: #6 of 17 inventorsTop 40%
Arkansas: #1,815 of 5,804 inventorsTop 35%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Henry Easter has been granted 2 US patents. The first was granted in 1991 and the most recent in May 1992. Henry Easter ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Henry Easter in Atkins, AR, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5112579 Continuous carbothermal reactor David A. Dunn, Michael S. Paquette, Roger K. Pihlaja 1992-05-12 $6,248,000
4983553 Continuous carbothermal reactor David A. Dunn, Michael S. Paquette, Roger K. Pihlaja 1991-01-08 $9,291,000