Patent Assignment
Reel/Frame 004554/0162
Assignment of Assignors Interest.
Recorded: 1986-03-20
Pages: 2
Assignor
HOLZHAUSEN, GARY R.
Executed: 1986-03-19
Assignee
APPLIED GEOMECHANICS, INC.
1336 BROMMER STREET, A CORP. OF CA., SANTA CRUZ, CALIFORNIA
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.
Apr 25, 1986
From: HOLZHAUSEN, GARY R.; ST. LAWRENCE, WILLIAM
To: APPLIED GEOMECHANICS, INC.
Reel/Frame 004554/0194 →
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 →