Patent Assignment
Reel/Frame 056374/0017
Assignment of Assignor's Interest
Recorded: 2021-05-27
Pages: 21
Assignor
OILFIELD MINERAL SOLUTIONS LIMITED
Executed: 2018-07-08
Assignee
EXKAL LIMITED
JOHNSTON CARMICHAEL, 7-11 MELVILLE STREET, EDINBURGH, SCOTLAND, EH3 7PE, UNITED KINGDOM
Covered Properties
(4)
Hydrocarbon Recovery Techniques
Method for Removing Oilfield Mineral Scale from Pipes and Tubing
Sampling Device for Oilfield Applications
Method of Mercury Decontamination
Related Assignments
(11)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Jul 25, 2007
From: OILFIELD MINERAL SOLUTIONS LIMITED
To: M-I PRODUCTION CHEMICALS UK LIMITED
Reel/Frame 019609/0069 →
Assignment of Assignor's Interest
Jul 25, 2007
From: KEATCH, RICHARD
To: OILFIELD MINERAL SOLUTIONS LIMITED
Reel/Frame 019609/0169 →
Assignment of Assignor's Interest
Oct 31, 2007
From: KEATCH, RICHARD W.; RAY, SIMON K.
To: OILFIELD MINERAL SOLUTIONS
Reel/Frame 020047/0780 →
Assignment of Assignor's Interest
Nov 1, 2007
From: OILFIELD MINERAL SOLUTIONS LIMITED
To: M-I PRODUCTION CHEMICALS UK LIMITED (50%); OILFIELD MINERAL SOLUTIONS LIMITED (50%)
Reel/Frame 020123/0683 →
Corrective Assignment to Correct the Assignee's Name, Previously Recorded at Reel 020047, Frame 0780.
Jan 27, 2009
From: KEATCH, RICHARD W.; RAY, SIMON K.
To: OILFIELD MINERAL SOLUTIONS LIMITED
Reel/Frame 022185/0765 →
Assignment of Assignor's Interest
Aug 27, 2015
From: OILFIELD MINERAL SOLUTIONS LIMITED
To: OILFIELD MINERAL SOLUTIONS LIMITED; M-I DRILLING FLUIDS U.K. LIMITED
Reel/Frame 036617/0471 →
Assignment of Assignor's Interest
Aug 27, 2015
From: KEATCH, RICHARD
To: OILFIELD MINERAL SOLUTIONS LIMITED
Reel/Frame 036440/0387 →
Assignment of Assignor's Interest
Jun 7, 2018
From: M-I DRILLING FLUIDS U.K. LIMITED
To: OILFIELD MINERAL SOLUTIONS LIMITED
Reel/Frame 046021/0494 →
Assignment of Assignor's Interest
Jun 7, 2018
From: M-I DRILLING FLUIDS U.K. LIMITED; M-I PRODUCTION CHEMICALS LIMITED UK
To: OILFIELD MINERAL SOLUTIONS LIMITED
Reel/Frame 046021/0551 →
Corrective Assignment to Correct the Typographical Error on the Assignor's Name on the Second Page of the Assignment Previously Recorded on Reel 046021 Frame 0494. Assignor(S) Hereby Confirms the Assignment.
Jun 28, 2018
From: M-I DRILLING FLUIDS U.K. LIMITED
To: OILFIELD MINERAL SOLUTIONS LIMITED
Reel/Frame 046463/0363 →
Corrective Assignment to Correct the Assignor's Second Page of the Assignment Previously Recorded on Reel 046021 Frame 0551. Assignor(S) Hereby Confirms the Assignment.
Jun 28, 2018
From: M-I DRILLING FLUIDS U.K. LIMITED; M-I PRODUCTION CHEMICALS LIMITED UK
To: OILFIELD MINERAL SOLUTIONS LIMITED
Reel/Frame 046463/0303 →