Patent Assignment
Reel/Frame 021895/0008
Assignment of Assignor's Interest
Recorded: 2008-11-26
Pages: 3
Assignor
WANG, XIAOLAN
Executed: 2008-11-24
Assignee
BJ SERVICES COMPANY
4601 WESTWAY PARK BLVD., HOUSTON, TEXAS, 77041
Covered Property
(1)
Method of Treating Subterranean Formations by in-Situ Hydrolysis of Organic Acid Esters
Application:
12/271,667 →
Publication:
US 2009/0131285
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Nov 14, 2008
From: QU, QI; BOLES, JOEL L.
To: BJ SERVICES COMPANY
Reel/Frame 021839/0344 →
Merger
Jun 17, 2011
From: BJ SERVICES COMPANY
To: BSA ACQUISITION LLC
Reel/Frame 026465/0022 →
Change of Name
Jun 23, 2011
From: BSA ACQUISITION LLC
To: BJ SERVICES COMPANY LLC
Reel/Frame 026498/0356 →
Assignment of Assignor's Interest
Jun 27, 2011
From: BJ SERVICES COMPANY LLC
To: BAKER HUGHES INCORPORATED
Reel/Frame 026508/0854 →