Patent Assignment
Reel/Frame 049577/0382
Assignment of Assignor's Interest
Recorded: 2019-06-25
Pages: 3
Assignor
HALLIBURTON ENERGY SERVICE, INC.
Executed: 2019-01-07
Assignee
DAVIDSON INSTRUMENTS, INC.
100 I-45 NORTH, SUITE 109, CONROE, TEXAS, 77301
Covered Properties
(3)
Interferometric Signal Conditioner for Measurement of Absolute Static Displacements and Dynamic Displacements of a Fabry-Perot Interferometer
Methods and Apparatus for Measuring Multiple Fabry-Perot Gaps
Transducer for Measuring Environmental Parameters
Related Assignments
(5)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Jun 6, 2005
From: JEFFERS, LARRY A.; BERTHOLD, JOHN W.; LOPUSHANSKY, RICHARD L.; NEEDHAM, DAVID B.
To: DAVIDSON INSTRUMENTS INC.
Reel/Frame 016095/0302 →
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
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 →
Assignment of Assignor's Interest
Mar 25, 2011
From: LOPUSHANSKY, RICHARD L.
To: HALLIBURTON ENERGY SERVICES, INC.
Reel/Frame 026022/0268 →