Patent Assignment
Reel/Frame 014699/0522
Assignment of Assignor's Interest
Recorded: 2004-06-08
Pages: 9
Assignor
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
Executed: 2004-05-07
Assignee
INNICOR SUBSURFACE TECHNOLOGIES INC.
6235B - 86TH AVENUE SE, CALGARY, T2C 2S4, CANADA
Covered Properties
(7)
Retrievable Bridge Plug and Retrieving Tool
Patent:
6,220,348 →
Application:
09/175,595 →
Junk Basket and Method of Use
Patent:
6,341,653 →
Application:
09/459,265 →
Retrievable bridge plug and retrieving tool
Patent:
6,244,642 →
Application:
09/618,934 →
Composite Packer Cup
Application:
09/990,383 →
Publication:
US 2003/0098153
Open Hole Straddle Tool
Hydraulically set liner hanger
Application:
10/404,450 →
Publication:
US 2004/0194954
Debris screen for a downhole tool
Application:
10/429,837 →
Publication:
US 2004/0221984
Related Assignments
(11)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Jun 11, 2003
From: CRAM, BRUCE A.
To: PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
Reel/Frame 014157/0819 →
Assignment of Assignor's Interest
Jun 20, 2003
From: CRAM, BRUCE A.; SERAFIN, VITOLD P.; TATE, BARRY J.
To: PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
Reel/Frame 014197/0588 →
Assignment of Assignor's Interest
Jun 20, 2003
From: SERAFIN, WITOLD P.; SHKURTI, PIRO T.; TATE, BARRY J.
To: PRECISION DRILLING TECHNOLOGY SERVICES GROUP, INC.
Reel/Frame 014197/0484 →
Assignment of Assignor's Interest
Dec 15, 2003
From: SERAFIN, WITOLD P.
To: POLAR COMPLETIONS ENGINEERING INC.
Reel/Frame 014199/0763 →
Merger
Dec 17, 2003
From: POLAR COMPLETIONS ENGINEERING INC.
To: PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC
Reel/Frame 014204/0602 →
Merger
May 4, 2004
From: POLAR COMPLETIONS ENGINEERING INC.
To: PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
Reel/Frame 014588/0772 →
Merger
May 4, 2004
From: POLAR COMPLETIONS ENGINEERING INC.
To: PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC
Reel/Frame 014588/0753 →
Merger
May 4, 2004
From: POLAR COMPLETIONS ENGINEERING INC.
To: PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
Reel/Frame 014588/0769 →
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 →