Patent Assignment
Reel/Frame 019798/0572
Assignment of Assignor's Interest
Recorded: 2007-08-27
Pages: 3
Assignor
XU, YANG
Executed: 2007-08-23
Assignee
BAKER HUGHES INCORPORATED
2929 ALLEN PARKWAY, SUITE 2100, HOUSTON, TEXAS, 77019-2118
Covered Property
(1)
Interventionless Multi-Position Frac Tool
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.