IP Library › Assignment 027849/0983
Patent Assignment
Reel/Frame 027849/0983

Assignment of Assignor's Interest

Recorded: 2012-03-13 Pages: 4
Assignor
Assignee
WEATHERFORD ENGINEERED CHEMISTRY CANADA LTD.
2900, 10180 - 101 STREET, EDMONTON, ALBERTA, T5J 3V5, CANADA
Covered Property (1)
Non-Phosphorus-Based Gellant for Hydrocarbon Fluids
Patent: 8,709,983 →
Application: 13/020,860 →
Publication: US 2011/0124534
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Mar 13, 2012
From: SMITH, CLAYTON; LEVEY, SIMON J M
To: INNOVATIVE CHEMICAL TECHNOLOGIES CANADA LTD.
Reel/Frame 027849/0858 →
Amalgamation-Dissolution-General Conveyance and Assumption Agreement Jan 7, 2014
From: WEATHERFORD ENGINEERED CHEMISTRY CANADA LTD
To: WEATHERFORD CANADA PARTNERSHIP
Reel/Frame 031925/0207 →
Assignment of Assignor's Interest Oct 15, 2015
From: WEATHERFORD CANADA PARTNERSHIP
To: LUBRIZOL OILFIELD SOLUTIONS, INC.
Reel/Frame 036796/0095 →