Patent Assignment
Reel/Frame 005397/0586
Assignment of Assignors Interest.
Recorded: 1990-08-13
Pages: 4
Assignors
KARLSSON, HARALDUR
Executed: 1990-07-13
JACQUES, GARY E.
Executed: 1990-07-13
HATTEN, JAMES L.
Executed: 1990-07-17
ASLAKSON, JOHN K.
Executed: 1990-07-13
Assignee
EASTMAN CHRISTENSEN COMPANY
1937 SOUTH 300 WEST, A CORP. OF UT, SALT LAKE CITY, UTAH, 84115
Covered Property
(1)
Horizontal Well Bore System
Patent:
5,040,601 →
Application:
07/541,839 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
Apr 11, 1991
From: EASTMAN CHRISTENSEN COMPANY, A CORP. OF DE
To: BAKER HUGHES INCORPORATED, 3900 ESSEX LANE, SUITE 1200, HOUSTON, TX A CORP. OF DE
Reel/Frame 005662/0597 →
Assignment of Assignors Interest.
Mar 22, 1993
From: BAKER HUGHES INCORPORATED
To: ENERGY VENTURES, INC.
Reel/Frame 006449/0557 →
Assignment of Assignor's Interest
Aug 22, 1994
From: ENERGY VENTURES, INC.
To: EVI CHERRINGTON ENVIRONMENTAL, INC.
Reel/Frame 007107/0526 →