Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Gregory Dunn — 1 Patent

DTDelta Tech: 1 patents #3 of 10Top 30%
Ellicott City, MD: #704 of 1,185 inventorsTop 60%
Maryland: #19,590 of 35,612 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Gregory Dunn has been granted 1 US patent while listed as an inventor at Delta Tech. All of these patents were granted in 1988. Gregory Dunn ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Gregory Dunn in Ellicott City, MD, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4747538 Water wall Patricia A. Dunn, Clyde T. Dunn 1988-05-31