Patent Assignment
Reel/Frame 057984/0271
Assignment of Assignor's Interest
Recorded: 2021-11-01
Pages: 2
Assignor
KARLSEN, HANS CHRISTIAN
Executed: 2021-08-20
Assignee
ARDYNE HOLDINGS LIMITED
1 ST. SWITHIN ROW, ABERDEEN, AB10 6DL, UNITED KINGDOM
Covered Property
(1)
Improvements In Or Relating To Well Abandonment and Slot Recovery
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Nov 1, 2021
From: WARDLEY, MICHAEL
To: ARDYNE HOLDINGS LIMITED
Reel/Frame 057984/0058 →
Assignment of Assignor's Interest
Nov 1, 2021
From: STORTEIG, ESKILD
To: ARDYNE HOLDINGS LIMITED
Reel/Frame 057984/0134 →
Assignment of Assignor's Interest
Nov 1, 2021
From: LINKLATER, JAMES
To: ARDYNE HOLDINGS LIMITED
Reel/Frame 057984/0203 →
Assignment of Assignor's Interest
Nov 8, 2021
From: VISWANATHAN, ALAGAPPAN
To: ARDYNE HOLDINGS LIMITED
Reel/Frame 058832/0265 →
Nunc Pro Tunc Assignment
Feb 25, 2026
From: ARDYNE HOLDINGS LIMITED
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Reel/Frame 073884/0872 →