Patent Assignment
Reel/Frame 012143/0289
Assignment of Assignor's Interest
Recorded: 2001-08-31
Pages: 4
Assignors
UNDERWOOD, MICHAEL
Executed: 2001-08-30
ASHBAUGH, RYAN B.
Executed: 2001-08-30
RITCHIE, NORMAN W.
Executed: 2001-08-30
Assignee
BAKER HUGHES INCORPORATED
3900 ESSEX LANE, SUITE 1200, HOUSTON, TEXAS, 77027
Covered Property
(1)
Filter-Switched Drive Operating Mode Control
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.