CM

Charles E. Mason

CO Conoco: 2 patents #177 of 638Top 30%
📍 Fairmont, WV: #25 of 69 inventorsTop 40%
🗺 West Virginia: #1,108 of 3,425 inventorsTop 35%
Overall (All Time): #2,351,672 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4498532 Pump down tool and check valve — 1985-02-12
4247312 Drilling fluid circulation system Pramod C. Thakur, Stephen D. Lauer, Emrys Jones 1981-01-27