Patent Assignment
Reel/Frame 022135/0024
Assignment of Assignor's Interest
Recorded: 2009-01-21
Pages: 6
Assignors
ZAHRADNIK, ANTON F
Executed: 2008-12-17
NGUYEN, DON Q
Executed: 2008-12-22
SULLIVAN, ERIC
Executed: 2009-01-05
KOLTERMANN, TERRY J
Executed: 2008-12-19
DICK, AARON J
Executed: 2008-12-17
SHU, SCOTT
Executed: 2009-01-16
Assignee
BAKER HUGHES INCORPORATED
2929 ALLEN PARKWAY, SUITE 2100, HOUSTON, TEXAS, 77019-2118
Covered Property
(1)
Threaded Cone Retention System for Roller Cone Bits
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.