Patent Assignment
Reel/Frame 014197/0484
Assignment of Assignor's Interest
Recorded: 2003-06-20
Pages: 3
Assignors
SERAFIN, WITOLD P.
Executed: 2003-06-12
SHKURTI, PIRO T.
Executed: 2003-06-11
TATE, BARRY J.
Executed: 2003-06-11
Assignee
PRECISION DRILLING TECHNOLOGY SERVICES GROUP, INC.
#4200, 1500-6TH AVENUE SW, CALGARY, AB, T2P 3Y7, CANADA
Covered Property
(1)
Open Hole Straddle Tool
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jun 8, 2004
From: PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
To: INNICOR SUBSURFACE TECHNOLOGIES INC.
Reel/Frame 014699/0522 →
Change of Name
Mar 30, 2009
From: INNICOR SUBSURFACE TECHNOLOGIES INC.
To: BJ TOOL SERVICES LTD.
Reel/Frame 022460/0669 →
Change of Name
Jul 18, 2022
From: BJ SERVICES COMPANY
To: WESTERN ATLAS HOLDINGS LLC
Reel/Frame 060536/0001 →
Change of Name
Jul 19, 2022
From: WESTERN ATLAS HOLDINGS LLC
To: BAKER HUGHES HOLDINGS LLC
Reel/Frame 060551/0789 →