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Patent Assignment
Reel/Frame 019016/0505

Assignment of Assignor's Interest

Recorded: 2007-03-08 Pages: 4
Assignor
TELFER, GEORGE
Executed: 2005-12-22
Assignee
SPECIALISED PETROLEUM SERVICES GROUP LIMITED
ARNHALL BUSINESS PARK, WESTHILL, ABERDEEN, AB32 6UF, UNITED KINGDOM
Covered Property (1)
Downhole Tool for Selectively Catching Balls in a Well Bore
Patent: 7,530,400 →
Application: 10/552,888 →
Publication: US 2007/0272412
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Sep 19, 2023
From: SPECIALISED PETROLEUM SERVICES GROUP LIMITED
To: SCHLUMBERGER OILFIELD UK LIMITED
Reel/Frame 064945/0540 →