Patent Assignment
Reel/Frame 015451/0693
Confirmatory License
Recorded: 2004-12-13
Pages: 3
Assignor
SANDIA CORPORATION
Executed: 2004-11-08
Assignee
U.S. DEPARTMENT OF ENERGY
1000 INDEPENDENCE AVENUE, S.W., WASHINGTON, DISTRICT OF COLUMBIA, 20585-0162
Covered Property
(1)
Apparatus and Method for Monitoring Underground Fracturing
Patent:
5,934,373 →
Application:
08/790,292 →
Related Assignments
(7)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jan 22, 1999
From: WARPINSKI, NORMAN R.; STEINFORT, TERRY D.
To: SANDIA NATIONAL LABORATORIES
Reel/Frame 009976/0748 →
Assignment of Assignor's Interest
Mar 8, 1999
From: BRANAGAN, PAUL T.; WILMER, ROY H.
To: GAS RESEARCH INSTITUTE
Reel/Frame 009837/0798 →
Assignment of Assignor's Interest
Mar 8, 1999
From: SANDIA CORPORATION
To: GAS RESEARCH INSTITUTE
Reel/Frame 009838/0448 →
Assignment of Assignor's Interest
Sep 9, 2005
From: GAS RESEARCH INSTITUTE
To: PINNACLE TECHNOLOGIES, INC.
Reel/Frame 016500/0829 →
Assignment of Assignor's Interest
Jan 17, 2006
From: GAS RESEARCH INSTITUTE
To: GAS TECHNOLOGY INSTITUTE
Reel/Frame 017448/0282 →
Assignment of Assignor's Interest
Feb 20, 2009
From: GAS TECHNOLOGY INSTITUTE
To: PINNACLE TECHNOLOGIES, INC.
Reel/Frame 022309/0036 →
Assignment of Assignor's Interest
Apr 6, 2009
From: PINNACLE TECHNOLOGIES, INC.
To: HALLIBURTON ENERGY SERVICES, INC.
Reel/Frame 022520/0919 →