Assignment of Assignor's Interest

Recorded: 2017-10-06 Pages: 10

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Assignor

WEATHERFORD TECHNOLOGY HOLDINGS, LLC

Executed: 2014-12-31

Assignee

LUBRIZOL OILFIELD SOLUTIONS, INC.

29400 LAKELAND BLVD., WICKLIFFE, OHIO, 44092-2298

Covered Property (1)

Weakly Consolidated, Semi Consolidated Formation, or Unconsolidated Formations Treated with Zeta Potential Altering Compositions to Form Conglomerated Formations

Patent: 9,725,634 →

Application: 14/587,755 →

Publication: US 2015/0111791

Related Assignments (2)

Other recorded transfers of the patent in this record — the chain of ownership.

Assignment of Assignor's Interest May 12, 2015

From: VAN PETEGEM, RONALD; KAKADJIAN, SARKIS R.; ZAMORA, FRANK

To: WEATHERFORD/LAMB, INC.

Reel/Frame 035616/0234 →

Assignment of Assignor's Interest Jan 18, 2018

From: LUBRIZOL OILFIELD SOLUTIONS, INC.

To: THE LUBRIZOL CORPORATION

Reel/Frame 044655/0922 →