EH

Eric C. Hopkinson

DI Dresser Industries: 2 patents #157 of 787Top 20%
📍 Houston, TX: #8,651 of 21,073 inventorsTop 45%
🗺 Texas: #52,441 of 125,132 inventorsTop 45%
Overall (All Time): #2,348,747 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4596927 Method and apparatus for induced gamma ray logging Donald W. Oliver 1986-06-24
4316086 Method and apparatus for measuring neutron characteristics of material surrounding a borehole 1982-02-16