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Patent Assignment
Reel/Frame 031923/0486

Amalgamation-Dissolution-General Conveyance and Assumption Agreement

Recorded: 2014-01-06 Pages: 24
Assignor
Assignee
WEATHERFORD CANADA PARTNERSHIP
333 5TH AVE SW, #1200, CALGARY, T2P3B6, CANADA
Covered Properties (2)
Single Fluid Acidizing Treatment
Patent: 7,915,205 →
Application: 11/423,390 →
Publication: US 2006/0281636
Fluid with Asphaltene Control
Patent: 7,500,522 →
Application: 11/534,064 →
Publication: US 2007/0062698
Related Assignments (2)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest Oct 15, 2015
From: WEATHERFORD CANADA PARTNERSHIP
To: LUBRIZOL OILFIELD SOLUTIONS, INC.
Reel/Frame 036796/0095 →
Assignment of Assignor's Interest Jan 18, 2018
From: LUBRIZOL OILFIELD SOLUTIONS, INC.
To: THE LUBRIZOL CORPORATION
Reel/Frame 044655/0922 →