DV

Douglas R. Villines

📍 Weatherford, OK: #21 of 46 inventorsTop 50%
🗺 Oklahoma: #6,781 of 12,736 inventorsTop 55%
Overall (All Time): #4,102,209 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4305467 Blow-out preventer lift system and method — 1981-12-15