DG

Douglas H. Green

📍 Covina, CA: #137 of 287 inventorsTop 50%
🗺 California: #247,236 of 386,348 inventorsTop 65%
Overall (All Time): #3,978,722 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4681175 Auto-coupling tool for drill-pipes Bruce Bocking, Joe A. Cervantes, Jr., Bruce W. La Sota, David H. Marshall, Bernard Rodriguez +1 more 1987-07-21