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Patent Assignment Abstract of Title
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Total Assignments: 4
Patent #:
Issue Dt:
03/13/1984
Application #:
06169676
Filing Dt:
07/17/1980
Inventors:
ASADOLLAH HAYATDAVOUDI, LADD M. ADAMS
Title:
DOWNHOLE VORTEX GENERATOR AND METHOD
Assignment: 1
Reel/Frame:
003849/0605Recorded: 04/28/1981Pages: 2
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors:
Exec Dt:
11/06/1980
Exec Dt:
04/20/1981
Assignee:
TEXAS
Correspondent:
LUCIAN WAYNE BEAVERS
LANEY, DOUGHERTY, HESSIN & BEAVERS
STE. 900, 101 PARK. AVE.
OKLAHOMA CITY, OK 73102
Assignment: 2
Reel/Frame:
003826/0190Recorded: 01/30/1981Pages: 2
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
Exec Dt:
01/21/1981
Assignee:
A CORP. OF TX
TEXAS
Correspondent:
LUCIAN WAYNE BEAVERS
LANEY, DOUGHERTY, HESSIN & BEAVERS
STE. 900, 101 PARK. AVE.
OKLAHOMA CITY, OK 73102
Assignment: 3
Reel/Frame:
011533/0785Recorded: 02/16/2001Pages: 23
Conveyance:
SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
02/07/2001
Assignee:
SUITE 1400
ONE SOUTH WACKER DRIVE
CHICAGO, ILLINOIS 60606
Correspondent:
GOLDBERG, KOHN, BELL ET AL.
MAISHA GIBSON
55 EAST MONROE STREET
SUITE 3700
CHICAGO, IL 60603-5802
Assignment: 4
Reel/Frame:
014763/0408Recorded: 06/22/2004Pages: 5
Conveyance:
RELEASE OF SECURITY INTEREST
Assignor:
Exec Dt:
06/16/2004
Assignee:
2606 ILLINOIS ROUTE 2 SOUTH
OREGON, ILLINOIS 61061
Correspondent:
JENNER & BLOCK LLP
MARIANN R. MURPHY
ONE IBM PLAZA
CHICAGO, IL 60611

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