IP Library › Assignment 028969/0229
Patent Assignment
Reel/Frame 028969/0229

Assignment of Assignor's Interest

Recorded: 2012-09-17 Pages: 3
Assignors
SORRELLS, MARTIN
Executed: 2003-06-23
MINTO, JAMES
Executed: 2003-06-23
Assignee
PRECISION DRILLING TECHNOLOGIES SERVICE GROUP INC.
4200, 150-6TH AVENUE S.W., CALGARY, ALBERTA, T2P 3Y7, CANADA
Covered Property (1)
Compensated Ensemble Crystal Oscillator for Use in a Well Borehole System
Patent: 8,340,911 →
Application: 11/279,130 →
Publication: US 2006/0192625
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Sep 17, 2012
From: PRECISION ENERGY SERVICES LTD
To: PRECISION ENERGY SERVICES ULC
Reel/Frame 028970/0678 →
Assignment of Assignor's Interest Sep 17, 2012
From: PRECISION ENERGY SERVICES ULC
To: WEATHERFORD CANADA PARTNERSHIP
Reel/Frame 028970/0884 →
Change of Name Sep 17, 2012
From: PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
To: PRECISION ENERGY SERVICES LTD.
Reel/Frame 028995/0584 →