Patent Assignment
Reel/Frame 024680/0063
Assignment of Assignor's Interest
Recorded: 2010-07-14
Pages: 3
Assignor
HEIRONIMUS, MARK, MR.
Executed: 2009-08-17
Assignee
BP CORPORATION NORTH AMERICA INC.
4101 WINFIELD ROAD, MAIL CODE 5 EAST, WARRENVILLE, ILLINOIS, 60555
Covered Property
(1)
Systems and Methods for Running Casing into Wells Drilled with Dual-Gradient Mud Systems