DB

David R. Butts

CI Chicago Bridge & Iron: 1 patents #59 of 129Top 50%
📍 Rockville, MD: #644 of 2,038 inventorsTop 35%
🗺 Maryland: #10,129 of 35,612 inventorsTop 30%
Overall (All Time): #1,585,123 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
7162844 Use of partial precast panels for construction of concrete walls and shells Donald MacKenzie Morrison, J. Ricky Simmons 2007-01-16
5161762 Vehicle cargo clamp Peter V. Stewart 1992-11-10
5082404 Vehicle cargo clamp Peter V. Stewart 1992-01-21