DS

Duane Shotwell

HC Hughes Tool Company: 1 patents #3 of 12Top 25%
📍 Conroe, TX: #10 of 27 inventorsTop 40%
🗺 Texas: #885 of 4,134 inventorsTop 25%
Overall (1989): #118,622 of 140,708Top 85%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4887675 Earth boring bit with pin mounted compensator — 1989-12-19