IP Library › Assignment 020095/0589
Patent Assignment
Reel/Frame 020095/0589

Assignment of Assignor's Interest

Recorded: 2007-11-12 Pages: 6
Assignor
DAVIDSON INSTRUMENTS INC.
Executed: 2007-10-31
Assignee
DAVIDSON ENERGY INC.
8301 NEW TRAILS DRIVE, THE WOODLANDS, TEXAS, 77381
Covered Properties (7)
Method and Apparatus for Continuous Readout of Fabry-Perot Fiber Optic Sensor
Patent: 7,492,463 →
Application: 11/105,651 →
Publication: US 2005/0231729
A Fiber Optic Sensor System Having Circulators, Bragg Gratings and Couplers
Patent: 7,864,329 →
Application: 11/314,714 →
Publication: US 2006/0139652
Fiber Optic Mems Seismic Sensor with Mass Supported by Hinged Beams
Patent: 7,743,661 →
Application: 11/705,224 →
Publication: US 2009/0056447
Apparatus for continuous readout of fabry-perot fiber optic sensor
Application: 11/726,273 →
Publication: US 2007/0252998
Fiber Optic Seismic Sensor Based on Mems Cantilever
Patent: 7,684,051 →
Application: 11/787,965 →
Publication: US 2008/0174781
Methods and Apparatus for Measuring Multiple Fabry-Perot Gaps
Patent: 8,115,937 →
Application: 11/893,434 →
Publication: US 2008/0043245
Pressure transducer for use at high pressures
Application: 60/897,093 →
Related Assignments (9)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest Jul 15, 2005
From: BERTHOLD, JOHN W.; LOPUSHANSKY, RICHARD L.
To: DAVIDSON INSTRUMENTS INC.
Reel/Frame 016270/0905 →
Assignment of Assignor's Interest Mar 9, 2006
From: BERTHOLD, JOHN W.
To: DAVIDSON INSTRUMENTS INC.
Reel/Frame 017282/0942 →
Assignment of Assignor's Interest May 7, 2007
From: BERTHOLD, JOHN W; COCKING, SETH A; KAMINSKI, WINCENTY A; JEFFERS, LARRY A
To: DAVIDSON INSTRUMENTS INC.
Reel/Frame 019257/0699 →
Assignment of Assignor's Interest Jul 2, 2007
From: BERTHOLD, JOHN W.; NEEDHAM, DAVID B.
To: DAVIDSON INSTRUMENTS INC.
Reel/Frame 019509/0269 →
Assignment of Assignor's Interest Oct 22, 2007
From: NEEDHAM, DAVID B
To: DAVIDSON INSTRUMENTS INC.
Reel/Frame 019992/0711 →
Assignment of Assignor's Interest Jan 26, 2009
From: DAVIDSON ENERGY, INC.; DAVIDSON INSTRUMENTS, INC.
To: HALLIBURTON ENERGY SERVICES, INC.
Reel/Frame 022157/0305 →
Assignment of Assignor's Interest Mar 5, 2009
From: BERTHOLD, JOHN W.
To: DAVIDSON INSTRUMENTS, INC.
Reel/Frame 022349/0474 →
Assignment of Assignor's Interest Feb 15, 2011
From: ZHOU, TIANSHENG
To: PRECISELEY MICROTECHNOLOGY CORP.
Reel/Frame 025808/0530 →
Assignment of Assignor's Interest Jun 25, 2019
From: HALLIBURTON ENERGY SERVICE, INC.
To: DAVIDSON INSTRUMENTS, INC.
Reel/Frame 049577/0382 →