IP Library › Assignment 023377/0366
Patent Assignment
Reel/Frame 023377/0366

Assignment of Assignor's Interest

Recorded: 2009-10-15 Pages: 3
Assignor
ARMSTRONG, CHARLES DAVID
Executed: 2009-10-15
Assignee
BJ SERVICES COMPANY
4601 WESTWAY PARK BLVD., HOUSTON, TEXAS, 77041
Covered Property (1)
Method of Fracturing Using Mannanohydrolase Enzyme Breaker
Patent: 8,058,212 →
Application: 12/579,771 →
Publication: US 2011/0092397
Related Assignments (6)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger Sep 17, 2010
From: BJ SERVICES COMPANY
To: BSA ACQUISITION LLC
Reel/Frame 025003/0602 →
Change of Name Sep 17, 2010
From: BSA ACQUISITION LLC
To: BJ SERVICES COMPANY LLC
Reel/Frame 025004/0127 →
Assignment of Assignor's Interest Jun 27, 2011
From: BJ SERVICES COMPANY LLC
To: BAKER HUGHES INCORPORATED
Reel/Frame 026508/0854 →
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 →