IP Library › Assignment 019664/0093
Patent Assignment
Reel/Frame 019664/0093

Assignment of Assignor's Interest

Recorded: 2007-08-08 Pages: 3
Assignors
RUSSELL, MICHAEL KING
Executed: 2007-07-27
WALKER, COLIN
Executed: 2007-07-27
Assignee
RUSSELL OIL EXPLORATION LIMITED
LYNWORTH HOUSE, 54 HIGH STREET, PRESTBURY, CHELTENHAM, GL523AU, UNITED KINGDOM
Covered Property (1)
Directional Drilling Control
Patent: 7,510,031 →
Application: 11/772,324 →
Publication: US 2008/0121432
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Oct 28, 2015
From: RUSSELL OIL EXPLORATION LTD.
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Reel/Frame 036899/0339 →