DH

Don M. Hannegan

WE Weatherford/Lamb: 1 patents #37 of 133Top 30%
📍 Barling, AR: #1 of 6 inventorsTop 20%
🗺 Arkansas: #43 of 249 inventorsTop 20%
Overall (2005): #210,305 of 245,428Top 90%
1
Patents 2005

Issued Patents 2005

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6913092 Method and system for return of drilling fluid from a sealed marine riser to a floating drilling rig while drilling Darryl A. Bourgoyne 2005-07-05