IP Library › Assignment 016172/0797
Patent Assignment
Reel/Frame 016172/0797

Change of Name

Recorded: 2005-06-24 Pages: 5
Assignor
Assignee
PRECISION ENERGY SERVICES LTD.
150 6TH AVENUE S.W. 4200, CALGARY, ALBERTA, T2P 3Y7, CANADA
Covered Properties (3)
Method and Apparatus for Providing a Stream of Inert Gases in Underbalanced Drilling of a Well Bore
Patent: 5,663,121 →
Application: 08/362,761 →
Grain Drying Apparatus
Patent: 6,029,367 →
Application: 09/052,534 →
Water-Based Drilling Fluid Deacidification Process and Apparatus
Patent: 6,032,747 →
Application: 09/095,118 →
Related Assignments (3)
Other recorded transfers of the patents in this record — the chain of ownership.
Change of Name Apr 21, 2006
From: PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
To: PRECISION ENERGY SERVICES LTD.
Reel/Frame 017507/0063 →
Assignment of Assignor's Interest Apr 24, 2006
From: PRECISION ENERGY SERVICES LTD.
To: PRECISION ENERGY SERVICES ULC
Reel/Frame 017519/0043 →
Assignment of Assignor's Interest Apr 26, 2006
From: PRECISION ENERGY SERVICES ULC
To: WEATHERFORD CANADA PARTNERSHIP
Reel/Frame 017527/0191 →