IP Library › Assignment 026217/0577
Patent Assignment
Reel/Frame 026217/0577

Assignment of Assignor's Interest

Recorded: 2011-05-03 Pages: 21
Assignor
HALL, DAVID R.
Executed: 2010-01-22
Assignee
SCHLUMBERGER TECHNOLOGY CORPORATION
5599 SAN FELIPE, SUITE 1600, HOUSTON, TEXAS, 77056
Covered Property (1)
Resistivity Receiver Spacing
Patent: 7,994,791 →
Application: 12/341,817 →
Publication: US 2009/0160446
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Mar 10, 2010
From: NOVADRILL, INC.
To: SCHLUMBERGER TECHNOLOGY CORPORATION
Reel/Frame 024055/0471 →
Assignment of Assignor's Interest May 3, 2011
From: TURNER, PAULA; COOK, CLINT; GEORGE, KATIE; SNYDER, HAROLD
To: NOVADRILL, INC.
Reel/Frame 026217/0545 →