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Patent Assignment
Reel/Frame 021673/0050

Assignment of Assignor's Interest

Recorded: 2008-10-13 Pages: 4
Assignors
DUAN, PING
Executed: 2008-10-03
MCELFRESH, PAUL
Executed: 2008-10-03
Assignee
BAKER HUGHES INCORPORATED
2929 ALLEN PARKWAY, SUITE 2100, HOUSTON, TEXAS, 77019-2118
Covered Property (1)
Shape Memory Polyurethane Foam for Downhole Sand Control Filtration Devices
Patent: 7,926,565 →
Application: 12/250,062 →
Publication: US 2010/0089565