Patent Assignment
Reel/Frame 023529/0431
Assignment of Assignor's Interest
Recorded: 2009-11-17
Pages: 7
Assignors
PISKLAK, THOMAS J.
Executed: 2009-11-10
STEVENS, RICHARD F., JR.
Executed: 2009-11-10
QU, QI
Executed: 2009-11-10
MORILLO, ELIZABETH G.
Executed: 2009-11-10
Assignee
BJ SERVICES COMPANY
4601 WESTWAY PARK BOULEVARD, HOUSTON, TEXAS, 77041
Covered Property
(1)
Light-Weight Proppant from Heat-Treated Pumice
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger
Sep 30, 2010
From: BJ SERVICES COMPANY
To: BSA ACQUISTION LLC
Reel/Frame 025072/0522 →
Change of Name
Sep 30, 2010
From: BSA ACQUISTION LLC
To: BJ SERVICES COMPANY LLC
Reel/Frame 025074/0184 →
Assignment of Assignor's Interest
Jun 29, 2011
From: BJ SERVICES COMPANY LLC
To: BAKER HUGHES INCORPORATED
Reel/Frame 026518/0727 →