IP Library Assignment 019375/0818
Patent Assignment
Reel/Frame 019375/0818

Assignment of Assignor's Interest

Recorded: 2007-06-04 Pages: 7
Assignors
LEITKO, TRAVIS
Executed: 2006-05-31
LOPUSHANSKY, RICHARD L
Executed: 2006-06-21
JEFFERS, LARRY A
Executed: 2006-06-21
BERTHOLD, JOHN W
Executed: 2006-06-21
Assignee
DAVIDSON INSTRUMENTS INC.
8301 NEW TRAILS DRIVE, THE WOODLANDS, TEXAS, 77381
Covered Property (1)
Differential Pressure Transducer Configurations Including Displacement Sensor
Patent: 7,434,472 →
Application: 11/709,669 →
Publication: US 2007/0227252
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jan 26, 2009
From: DAVIDSON ENERGY, INC.; DAVIDSON INSTRUMENTS, INC.
To: HALLIBURTON ENERGY SERVICES, INC.
Reel/Frame 022157/0305 →