IP Library Assignment 018604/0603
Patent Assignment
Reel/Frame 018604/0603

Assignment of Assignor's Interest

Recorded: 2006-12-08 Pages: 3
Assignors
JONES, STEPHEN
Executed: 2006-11-07
SUGIURA, JUNICHI
Executed: 2006-11-07
Assignee
PATHFINDER ENERGY SERVICES, INC.
15151 SOMMERMEYER, HOUSTON, TEXAS, 77041
Covered Property (1)
Closed-Loop Control of Hydraulic Pressure in a Downhole Steering Tool
Patent: 7,464,770 →
Application: 11/595,054 →
Publication: US 2008/0110674
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Feb 10, 2009
From: PATHFINDER ENERGY SERVICES, INC.
To: SMITH INTERNATIONAL, INC.
Reel/Frame 022231/0733 →
Assignment of Assignor's Interest Oct 17, 2012
From: SMITH INTERNATIONAL, INC.
To: SCHLUMBERGER TECHNOLOGY CORPORATION
Reel/Frame 029143/0015 →