Patent Assignment
Reel/Frame 027190/0361
Confirmatory License
Recorded: 2011-11-08
Pages: 2
Assignor
SHELL OIL COMPANY
Executed: 2011-11-03
Assignee
U.S. DEPARTMENT OF ENERGY
1000 INDEPENDNCE AVE., SW, WASHINGTON, DISTRICT OF COLUMBIA, 20585
Covered Property
(1)
Drilling Subsurface Wellbores with Cutting Structures