Patent Assignment
Reel/Frame 021285/0363
Assignment of Assignor's Interest
Recorded: 2008-07-24
Pages: 6
Assignors
LE, HOANG
Executed: 2008-07-02
BATRASHKIN, ALEXANDER
Executed: 2008-07-08
DAWSON, JEFFREY C.
Executed: 2008-06-30
Assignee
BJ SERVICES COMPANY
4601 WESTWAY PARK BLVD., HOUSTON, TEXAS, 77041
Covered Property
(1)
Method for Treating Subterranean Formation with Enhanced Viscosity Foam
Related Assignments
(7)
Other recorded transfers of the patent in this record — the chain of ownership.
Confirmatory License
Jul 28, 2009
From: UNIVERSITY OF WASHINGTON
To: NATIONAL SCIENCE FOUNDATION
Reel/Frame 023012/0343 →
Merger
May 2, 2011
From: BJ SERVICES COMPANY
To: BSA ACQUISITION LLC
Reel/Frame 026242/0933 →
Change of Name
May 23, 2011
From: BSA ACQUISITION LLC
To: BJ SERVICES COMPANY LLC
Reel/Frame 026414/0550 →
Assignment of Assignor's Interest
Jun 17, 2011
From: BJ SERVICES COMPANY LLC
To: BAKER HUGHES INCORPORATED
Reel/Frame 026453/0716 →
Entity Conversion
Oct 4, 2017
From: BAKER HUGHES INCORPORATED
To: BAKER HUGHES, A GE COMPANY, LLC
Reel/Frame 044127/0001 →
Change of Name
Feb 16, 2018
From: BAKER HUGHES INCORPORATED
To: BAKER HUGHES, A GE COMPANY, LLC
Reel/Frame 045349/0522 →
Change of Name
Feb 16, 2022
From: BAKER HUGHES, A GE COMPANY, LLC
To: BAKER HUGHES HOLDINGS LLC
Reel/Frame 059142/0921 →