VS

Vinson D. Sullivan

OE Otis Engineering: 1 patents #122 of 228Top 55%
Overall (All Time): #4,035,530 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4452311 Equalizing means for well tools Steven C. Speegle, Michael B. Vinzant 1984-06-05