Patent Assignment
Reel/Frame 019097/0011
Confirmatory License
Recorded: 2007-03-30
Pages: 2
Assignor
NOVATEK
Executed: 2007-03-16
Assignee
ENERGY, UNITED STATES DEPARTMENT OF
1000 INDEPENDENCE AVE., S.W., WASHINGTON, DISTRICT OF COLUMBIA, 20585
Covered Property
(1)
Means for Detecting Subterranean Formations and Monitoring the Operation of a Down-Hole Fluid Driven Percussive Piston
Patent:
6,367,565 →
Application:
09/049,218 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Confirmatory License
Mar 30, 2007
From: NOVATEK
To: ENERGY, UNITED STATES DEPARTMENT OF
Reel/Frame 019097/0017 →
Assignment of Assignor's Interest
Oct 20, 2008
From: HALL, DAVID R.
To: NOVADRILL, INC.
Reel/Frame 021701/0758 →
Assignment of Assignor's Interest
Mar 10, 2010
From: NOVADRILL, INC.
To: SCHLUMBERGER TECHNOLOGY CORPORATION
Reel/Frame 024055/0349 →