DS

Donald W. Shackelford

HA Halliburton: 1 patents #490 of 857Top 60%
📍 Duncan, OK: #446 of 603 inventorsTop 75%
🗺 Oklahoma: #6,781 of 12,736 inventorsTop 55%
Overall (All Time): #3,823,467 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5209108 Rheological test apparatus and method using a helical screw rheometer — 1993-05-11