Patent Assignment
Reel/Frame 062840/0031
Assignment of Assignor's Interest
Recorded: 2023-03-01
Pages: 11
Assignor
M-I DRILLING FLUIDS U.K. LIMITED
Executed: 2022-04-15
Assignee
SCHLUMBERGER OILFIELD UK LIMITED
SCHLUMBERGER HOUSE BUCKINGHAM GATE, GATWICK AIRPORT, WEST SUSSEX, RH6 0NZ, UNITED KINGDOM
Covered Property
(1)
Downhole Valve Apparatus
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jul 3, 2018
From: ATKINS, JAMES EDWARD; BUCKLAND, JONATHAN PETER; LINKLATER, JAMES
To: M-I DRILLING FLUIDS UK LTD.
Reel/Frame 046256/0718 →
Assignment of Assignor's Interest
Mar 1, 2023
From: SCHLUMBERGER OILFIELD UK LIMITED
To: SCHLUMBERGER TECHNOLOGY CORPORATION
Reel/Frame 062840/0294 →