IP Library Assignment 017282/0942
Patent Assignment
Reel/Frame 017282/0942

Assignment of Assignor's Interest

Recorded: 2006-03-09 Pages: 3
Assignor
BERTHOLD, JOHN W.
Executed: 2006-02-15
Assignee
DAVIDSON INSTRUMENTS INC.
8301 NEW TRAILS DRIVE, THE WOODLANDS, TEXAS, 77381
Covered Property (1)
A Fiber Optic Sensor System Having Circulators, Bragg Gratings and Couplers
Patent: 7,864,329 →
Application: 11/314,714 →
Publication: US 2006/0139652
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Nov 12, 2007
From: DAVIDSON INSTRUMENTS INC.
To: DAVIDSON ENERGY INC.
Reel/Frame 020095/0589 →
Assignment of Assignor's Interest Jan 26, 2009
From: DAVIDSON ENERGY, INC.; DAVIDSON INSTRUMENTS, INC.
To: HALLIBURTON ENERGY SERVICES, INC.
Reel/Frame 022157/0305 →