IP Library › Assignment 005798/0504
Patent Assignment
Reel/Frame 005798/0504

Assignment of Assignors Interest.

Recorded: 1991-06-13 Pages: 3
Assignor
KARLSSON, HARALDUR
Executed: 1991-06-10
Assignee
BAKER HUGHES INCORPORATED
A CORPORATION OF DE, 3900 ESSEX LANE, HOUSTON, TEXAS, 77027
Covered Property (1)
Method and Apparatus for Taking an Undisturbed Core Sample
Patent: 5,253,720 →
Application: 07/716,664 →
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest. Jun 13, 1991
From: RADFORD, STEVEN R.; AUMANN, JAMES T.
To: BAKER HUGHES INCORPORATED
Reel/Frame 005798/0501 →
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 →