IP Library › Assignment 046256/0718
Patent Assignment
Reel/Frame 046256/0718

Assignment of Assignor's Interest

Recorded: 2018-07-03 Pages: 8
Assignors
ATKINS, JAMES EDWARD
Executed: 2017-11-22
BUCKLAND, JONATHAN PETER
Executed: 2017-11-22
LINKLATER, JAMES
Executed: 2017-11-21
Assignee
M-I DRILLING FLUIDS UK LTD.
ENTERPRISE DRIVE, WESTHILL, ABERDEENSHIRE, SCOTLAND, AB32 6JL, UNITED KINGDOM
Covered Property (1)
Downhole Valve Apparatus
Application: 16/067,614 →
Publication: US 2019/0003283
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Mar 1, 2023
From: M-I DRILLING FLUIDS U.K. LIMITED
To: SCHLUMBERGER OILFIELD UK LIMITED
Reel/Frame 062840/0031 →
Assignment of Assignor's Interest Mar 1, 2023
From: SCHLUMBERGER OILFIELD UK LIMITED
To: SCHLUMBERGER TECHNOLOGY CORPORATION
Reel/Frame 062840/0294 →