DD

Darel W. Duvall

📍 Tulsa, OK: #1,272 of 2,344 inventorsTop 55%
🗺 Oklahoma: #6,781 of 12,736 inventorsTop 55%
Overall (All Time): #2,876,887 of 4,157,543Top 70%
1
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9897244 Grout reinforced piggable pipeline connector — 2018-02-20