Patent Assignment
Reel/Frame 023602/0548
Assignment of Assignor's Interest
Recorded: 2009-12-03
Pages: 5
Assignors
HUANG, TIANPING
Executed: 2009-10-30
CREWS, JAMES B.
Executed: 2009-10-30
WILLINGHAM, JOHN R.
Executed: 2009-11-21
Assignee
BAKER HUGHES INCORPORATED
2929 ALLEN PARKWAY, SUITE 2100, HOUSTON, TEXAS, 77019-2118
Covered Property
(1)
Drilling Fluids for Oil and Gas Reservoirs with High Carbonate Contents