IP Library › Assignment 025810/0323
Patent Assignment
Reel/Frame 025810/0323

Assignment of Assignor's Interest

Recorded: 2011-02-15 Pages: 5
Assignor
Assignee
WEATHERFORD ENGINEERED CHEMISTRY CANADA LTD
2900, 10180 - 101 STREET, EDMONTON, ALBERTA, T5J 3V5, CANADA
Covered Properties (8)
Packer Fluid
Patent: 7,219,735 →
Application: 10/695,916 →
Publication: US 2004/0087448
Single Fluid Acidizing Treatment
Patent: 7,915,205 →
Application: 11/423,390 →
Publication: US 2006/0281636
Clay Control Additive for Wellbore Fluids
Patent: 7,740,071 →
Application: 11/426,175 →
Publication: US 2006/0289164
Fluid with Asphaltene Control
Patent: 7,500,522 →
Application: 11/534,064 →
Publication: US 2007/0062698
Recycling of Oil-Based Drilling Muds
Patent: 7,754,661 →
Application: 11/945,980 →
Publication: US 2008/0121564
Non-Phosphorus-Based Gellants for Hydrocarbon Fluids
Patent: 7,932,216 →
Application: 11/957,248 →
Publication: US 2008/0146466
Clay Control Additive for Wellbore Fluids
Patent: 7,915,202 →
Application: 12/768,618 →
Publication: US 2010/0210484
Bitumen Anti-Accretion Additive
Patent: 9,249,350 →
Application: 12/779,827 →
Publication: US 2010/0298173
Related Assignments (15)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest Sep 26, 2006
From: SKIBINSKI, DAN; SMITH, CLAYTON
To: INNOVATIVE CHEMICAL TECHNOLOGIES CANADA LTD.
Reel/Frame 018306/0217 →
Assignment of Assignor's Interest Oct 25, 2006
From: SMITH, CLAYTON; SKIBINSKI, DAN
To: ECL GROUP OF COMPANIES
Reel/Frame 018431/0455 →
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 May 3, 2010
From: SMITH, CLAYTON; OSWALD, DARIN; DAFFIN, MICHAEL
To: INNOVATIVE CHEMICAL TECHNOLOGIES CANADA LTD.
Reel/Frame 024326/0593 →
Assignment of Assignor's Interest May 10, 2010
From: SMITH, CLAYTON; LEVEY, SIMON JOHN MICHAEL
To: INNOVATIVE CHEMICAL TECHNOLOGIES CANADA LTD.
Reel/Frame 024360/0783 →
Assignment of Assignor's Interest May 26, 2010
From: SMITH, CLAYTON; LEVEY, SIMON JOHN MICHAEL; REN, YONGLIN
To: INNOVATIVE CHEMICAL TECHNOLOGIES CANADA LTD.
Reel/Frame 024446/0294 →
Assignment of Assignor's Interest Jun 7, 2010
From: SMITH, CLAYTON; OSWALD, DARIN; DAFFIN, MICHAEL
To: INNOVATIVE CHEMICAL TECHNOLOGIES CANADA LTD.
Reel/Frame 024493/0983 →
Assignment of Assignor's Interest Feb 16, 2011
From: SMITH, CLAYTON; LEVEY, SIMON JOHN MICHAEL
To: INNOVATIVE CHEMICAL TECHNOLOGIES CANADA LTD.
Reel/Frame 025815/0397 →
Assignment of Assignor's Interest Feb 16, 2011
From: SMITH, CLAYTON; OSWALD, DARIN; SKIBINSKI, DAN; SYLVESTRE, NICOLE
To: INNOVATIVE CHEMICAL TECHNOLOGIES CANADA LTD.
Reel/Frame 025815/0565 →
Amalgamation-Dissolution-General Conveyance and Assumption Agreement Dec 11, 2013
From: WEATHERFORD ENGINEERED CHEMISTRY CANADA LTD
To: WEATHERFORD CANADA PARTNERSHIP
Reel/Frame 031794/0755 →
Amalgamation-Dissolution-General Conveyance and Assumption Agreement Jan 6, 2014
From: WEATHERFORD ENGINEERED CHEMISTRY CANADA LTD
To: WEATHERFORD CANADA PARTNERSHIP
Reel/Frame 031923/0521 →
Amalgamation-Dissolution-General Conveyance and Assumption Agreement Jan 6, 2014
From: WEATHERFORD ENGINEERED CHEMISTRY CANADA LTD
To: WEATHERFORD CANADA PARTNERSHIP
Reel/Frame 031923/0486 →
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 →
Assignment of Assignor's Interest Jan 18, 2018
From: LUBRIZOL OILFIELD SOLUTIONS, INC.
To: THE LUBRIZOL CORPORATION
Reel/Frame 044655/0922 →