Patent Assignment
Reel/Frame 021915/0039
Assignment of Assignor's Interest
Recorded: 2008-12-02
Pages: 10
Assignors
BRANNON, HAROLD DEAN
Executed: 2004-09-07
WOOD, WILLIAM DALE
Executed: 2004-09-07
EDGEMAN, RANDALL
Executed: 2004-09-09
RICKARDS, ALLAN RAY
Executed: 2004-09-07
STEPHENSON, CHRISTOPHER JOHN
Executed: 2004-09-07
WALSER, DOUG
Executed: 2004-09-07
MALONE, MARK
Executed: 2004-09-07
Assignee
BJ SERVICES COMPANY
4601 WESTWAY PARK BLVD., HOUSTON, TEXAS, 77041
Covered Property
(1)
Method of Treating Subterranean Formations Using Mixed Density Proppants or Sequential Proppant Stages
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
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 →
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 059141/0762 →