IP Library Assignment 036796/0095
Patent Assignment
Reel/Frame 036796/0095

Assignment of Assignor's Interest

Recorded: 2015-10-15 Pages: 8
Assignor
WEATHERFORD CANADA PARTNERSHIP
Executed: 2014-12-30
Assignee
LUBRIZOL OILFIELD SOLUTIONS, INC.
29400 LAKELAND BLVD., WICKLIFFE, OHIO, 44092
Covered Properties (9)
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
Non-Phosphorus-Based Gellant for Hydrocarbon Fluids
Patent: 8,709,983 →
Application: 13/020,860 →
Publication: US 2011/0124534
Related Assignments (5)
Other recorded transfers of the patents in this record — the chain of ownership.
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 031923/0486 →
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 7, 2014
From: WEATHERFORD ENGINEERED CHEMISTRY CANADA LTD
To: WEATHERFORD CANADA PARTNERSHIP
Reel/Frame 031925/0207 →
Assignment of Assignor's Interest Jan 18, 2018
From: LUBRIZOL OILFIELD SOLUTIONS, INC.
To: THE LUBRIZOL CORPORATION
Reel/Frame 044655/0922 →