IP Library › Assignment 018431/0455
Patent Assignment
Reel/Frame 018431/0455

Assignment of Assignor's Interest

Recorded: 2006-10-25 Pages: 3
Assignors
SMITH, CLAYTON
Executed: 2002-10-31
SKIBINSKI, DAN
Executed: 2002-11-01
Assignee
ECL GROUP OF COMPANIES
7100 - 44 STREET SE, CALGARY, T2C 2V7, CANADA
Covered Property (1)
Packer Fluid
Patent: 7,219,735 →
Application: 10/695,916 →
Publication: US 2004/0087448
Related Assignments (4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Nov 7, 2006
From: ECL GROUP OF COMPANIES
To: INNOVATIVE CHEMICAL TECHNOLOGIES CANADA LTD.
Reel/Frame 018492/0239 →
Assignment of Assignor's Interest Feb 15, 2011
From: INNOVATIVE CHEMICAL TECHNOLOGIES CANADA LTD.
To: WEATHERFORD ENGINEERED CHEMISTRY CANADA LTD
Reel/Frame 025810/0323 →
Amalgamation-Dissolution-General Conveyance and Assumption Agreement Dec 11, 2013
From: WEATHERFORD ENGINEERED CHEMISTRY CANADA LTD
To: WEATHERFORD CANADA PARTNERSHIP
Reel/Frame 031794/0755 →
Assignment of Assignor's Interest Oct 15, 2015
From: WEATHERFORD CANADA PARTNERSHIP
To: LUBRIZOL OILFIELD SOLUTIONS, INC.
Reel/Frame 036796/0095 →