Patent Assignment
Reel/Frame 029510/0854
Assignment of Assignor's Interest
Recorded: 2012-12-20
Pages: 3
Assignor
GREGORY, MARVIN ALLEN
Executed: 2012-12-19
Assignee
CNPC USA CORP
2901 WILCREST DRIVE, 3RD FLOOR, HOUSTON, TEXAS, 77042
Covered Property
(1)
Millable Bridge Plug System