IP Library › Assignment 004953/0812
Patent Assignment
Reel/Frame 004953/0812

Assignment of Assignors Interest.

Recorded: 1988-09-27 Pages: 2
Assignors
HOLZHAUSEN, GARY R.
Executed: 1988-09-27
BAKER, GREGORY S.
Executed: 1988-09-27
EGAN, HOWARD N.
Executed: 1988-09-27
Assignee
Covered Property (1)
Method of Identification of Well Damage and Downhole Irregularities
Patent: 5,081,613 →
Application: 07/250,036 →
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Feb 24, 2009
From: APPLIED GEOMECHANICS INC.
To: PINNACLE TECHNOLOGIES, INC.
Reel/Frame 022309/0032 →
Assignment of Assignor's Interest Apr 6, 2009
From: PINNACLE TECHNOLOGIES, INC.
To: HALLIBURTON ENERGY SERVICES, INC.
Reel/Frame 022520/0919 →