Patent Assignment
Reel/Frame 073884/0872
Nunc Pro Tunc Assignment
Recorded: 2026-02-25
Pages: 4
Assignor
ARDYNE HOLDINGS LIMITED
Executed: 2025-11-21
Assignee
WEATHERFORD TECHNOLOGY HOLDINGS, LLC
2000 ST. JAMES PLACE, HOUSTON, TEXAS, 77056
Covered Properties
(33)
Hydraulically Powered Fishing Tool and Method
Downhole Tool Stop Device and Method for Use of Same
Downhole Tool Method and Device
Downhole Cut and Pull Tool and Method of Use
Apparatus For Removing A Section Of Casing Or Lining From A Well-Bore, And Methods
Downhole Cutting Tool and Method of Use
Downhole Test Tool and Method of Use
Downhole Test Tool and Method of Use
Method of Removing A Downhole Casing
Method of Abandoning a Well
Method and Tool For Well Abandonment and Slot Recovery
Improvements In Or Relating To Well Abandonment And Slot Recovery
Downhole Anchor Mechanism
Improvements In Or Relating To Well Abandonment And Slot Recovery
Improvements In Or Relating To Well Abandonment And Slot Recovery
Improvements In Or Relating To Well Abandonment And Slot Recovery
Improvements In Or Relating To Well Abandonment And Slot Recovery
Improvements In Or Relating To Well Abandonment
Improvements In Or Relating To Well Abandonment
Improvements In Or Relating To Well Abandonment and Slot Recovery
Method of Removing A Downhole Casing
Improvements In Or Relating To Well Abandonment and Slot Recovery
Downhole Tool
Improvements In Or Relating To Well Abandonment and Slot Recovery
System and Method for Moving Stuck Objects in a Well
Improvements In Or Relating To Well Abandonment and Slot Recovery
Improvements In Or Relating To Well Abandonment and Slot Recovery
Improvements In Or Relating To Well Abandonment and Slot Recovery
Method Relating To Well Abandonment
Improvements In Or Relating To Well Abandonment and Slot Recovery
Well Abandonment
Method and Apparatus for Cutting and Pulling Cut Section of Tubing in an Open Hole Section of a Wellbore
Improvements In Or Relating To Well Abandonment and Slot Recovery
Related Assignments
(25)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Aug 3, 2016
From: EVERTSEN, STEFFEN
To: WELLBORE AS
Reel/Frame 039336/0043 →
Assignment of Assignor's Interest
Jan 20, 2017
From: EVERTSEN, STEFFEN
To: WELLBORE AS
Reel/Frame 041029/0229 →
Change of Name
Jun 5, 2018
From: WELLBORE AS
To: ARDYNE AS
Reel/Frame 045993/0894 →
Assignment of Assignor's Interest
Jun 5, 2018
From: ROOYAKKERS, EDWIN CORNELIS GERARDUS; HANSEN, STEFFAN
To: ARDYNE AS
Reel/Frame 045994/0015 →
Change of Name
Jun 7, 2018
From: WELLBORE AS
To: ARDYNE AS
Reel/Frame 046020/0416 →
Assignment of Assignor's Interest
Jun 14, 2018
From: TIW CORPORATION
To: ARDYNE HOLDINGS LIMITED
Reel/Frame 046094/0031 →
Assignment of Assignor's Interest
Dec 4, 2018
From: ARDYNE AS
To: ARDYNE HOLDINGS LIMITED
Reel/Frame 047673/0134 →
Assignment of Assignor's Interest
Dec 4, 2018
From: ARDYNE TECHNOLOGIES LIMITED
To: ARDYNE HOLDINGS LIMITED
Reel/Frame 047673/0347 →
Assignment of Assignor's Interest
Dec 4, 2018
From: FAIRWEATHER, ALAN; TELFER, GEORGE; WARDLEY, MICHAEL
To: ARDYNE TECHNOLOGIES LIMITED
Reel/Frame 047673/0335 →
Assignment of Assignor's Interest
Dec 4, 2018
From: ARDYNE AS
To: ARDYNE HOLDINGS LIMITED
Reel/Frame 047673/0153 →
Assignment of Assignor's Interest
Mar 6, 2019
From: EVERTSEN, STEFFEN
To: ARDYNE HOLDINGS LIMITED
Reel/Frame 048520/0908 →
Assignment of Assignor's Interest
Mar 6, 2019
From: HANSEN, STEFFEN
To: ARDYNE HOLDINGS LIMITED
Reel/Frame 048518/0276 →
Assignment of Assignor's Interest
Apr 18, 2019
From: TELFER, GEORGE; FAIRWEATHER, ALAN
To: ARDYNE HOLDINGS LIMITED
Reel/Frame 048924/0984 →
Assignment of Assignor's Interest
Apr 23, 2019
From: TELFER, GEORGE; FAIRWEATHER, ALAN; WARDLEY, MICHAEL; LINKLATER, JAMES
To: ARDYNE HOLDINGS LIMITED
Reel/Frame 048965/0067 →
Assignment of Assignor's Interest
Oct 31, 2019
From: TELFER, GEORGE
To: ARDYNE HOLDINGS LIMITED
Reel/Frame 050884/0377 →
Assignment of Assignor's Interest
Oct 31, 2019
From: FAIRWEATHER, ALAN; WARDLEY, MICHAEL; TELFER, GEORGE
To: ARDYNE HOLDINGS LIMITED
Reel/Frame 050883/0307 →
Assignment of Assignor's Interest
Oct 31, 2019
From: TELFER, GEORGE
To: ARDYNE HOLDINGS LIMITED
Reel/Frame 050884/0264 →
Assignment of Assignor's Interest
Jan 22, 2020
From: FAIRWEATHER, ALAN
To: ARDYNE HOLDINGS LIMITED
Reel/Frame 051587/0154 →
Assignment of Assignor's Interest
Jan 22, 2020
From: FAIRWEATHER, ALAN; WARDLEY, MICHAEL; TELFER, GEORGE
To: ARDYNE HOLDINGS LIMITED
Reel/Frame 051587/0337 →
Assignment of Assignor's Interest
Jan 22, 2020
From: FAIRWEATHER, ALAN
To: ARDYNE HOLDINGS LIMITED
Reel/Frame 051587/0461 →
Assignment of Assignor's Interest
Aug 17, 2020
From: ROOYAKKERS, EDWIN
To: ARDYNE HOLDINGS LIMITED
Reel/Frame 053515/0108 →
Assignment of Assignor's Interest
Aug 17, 2020
From: SUNDE, FRODE
To: ARDYNE HOLDINGS LIMITED
Reel/Frame 053515/0249 →
Assignment of Assignor's Interest
Aug 17, 2020
From: WATHNE, ARNSTEIN
To: ARDYNE HOLDINGS LIMITED
Reel/Frame 053515/0172 →
Assignment of Assignor's Interest
Aug 17, 2020
From: ENERSTVEDT, EIRIK
To: ARDYNE HOLDINGS LIMITED
Reel/Frame 053514/0933 →
Assignment of Assignor's Interest
Aug 17, 2020
From: EVERTSEN, STEFFEN
To: ARDYNE HOLDINGS LIMITED
Reel/Frame 053515/0001 →