IP Library › Assignment 004554/0194
Patent Assignment
Reel/Frame 004554/0194

Assignment of Assignors Interest.

Recorded: 1986-04-25 Pages: 2
Assignors
HOLZHAUSEN, GARY R.
Executed: 1986-04-07
ST. LAWRENCE, WILLIAM
Executed: 1986-04-07
Assignee
APPLIED GEOMECHANICS, INC.
1336 BROMMER STREET, A CORP. OF CA., SANTA CRUZ, CALIFORNIA, 95062
Covered Property (1)
Hydraulic Fracture Analysis Method
Patent: 4,802,144 →
Application: 06/841,645 →
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest. Mar 20, 1986
From: HOLZHAUSEN, GARY R.
To: APPLIED GEOMECHANICS, INC.
Reel/Frame 004554/0162 →
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 →