MD

Marvin R. DeVries

DI Dresser Industries: 1 patents #301 of 787Top 40%
📍 Tulsa, OK: #825 of 2,344 inventorsTop 40%
🗺 Oklahoma: #4,502 of 12,736 inventorsTop 40%
Overall (All Time): #2,333,502 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4872911 Stop leak composition David H. Walley 1989-10-10
4346592 Method for determining effective reservoir porosity Walter H. Fertl 1982-08-31