IP Library › Assignment 027631/0494
Patent Assignment
Reel/Frame 027631/0494

Assignment of Assignor's Interest

Recorded: 2012-02-01 Pages: 4
Assignors
JENKINS, ALYN EDWARD
Executed: 2012-01-19
GRAINGER, NEIL
Executed: 2012-01-19
Assignee
M-I DRILLING FLUIDS UK LTD.
MINTO DRIVE, ALTENS INDUSTRIAL ESTATE, ABERDEEN, SCOTLAND, AB12 3LW, UNITED KINGDOM
Covered Property (1)
Quaternary Ammonium Corrosion Inhibitor
Patent: 9,103,039 →
Application: 13/319,186 →
Publication: US 2012/0128530
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Dec 4, 2012
From: BLEZARD, MICHAEL; PEPIN, MATHIEU
To: M-I DRILLING FLUIDS UK LIMITED; STEPAN UK LIMITED
Reel/Frame 029402/0038 →
Assignment of Assignor's Interest Sep 21, 2023
From: M-I DRILLING FLUIDS UK LIMITED
To: SCHLUMBERGER OILFIELD UK LIMITED
Reel/Frame 065019/0082 →