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Patent Assignment Abstract of Title
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Total Assignments: 2
Patent #:
Issue Dt:
01/14/1992
Application #:
07592096
Filing Dt:
10/03/1990
Inventors:
LEE E. WHITEBAY, LISA A. CANTU
Title:
METHOD FOR REDUCING FLUID LEAK-OFF DURING WELL TREATMENT
Assignment: 1
Reel/Frame:
005470/0438Recorded: 10/03/1990Pages: 2
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors:
Exec Dt:
10/03/1990
Exec Dt:
09/27/1990
Assignee:
1000 SOUTH PINE
PONCA CITY, OKLAHOMA 74603
Correspondent:
RICHARD W. COLLINS
PATENT AND LICENSING DIV.
CONOCO INC.,
P.O. BOX 1267
PONCA CITY, OK 74603
Assignment: 2
Reel/Frame:
022634/0590Recorded: 05/05/2009Pages: 6
Conveyance:
MERGER (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
12/12/2002
Assignee:
600 NORTH DAIRY ASHFORD
MA 1135
HOUSTON, TEXAS 77079-1175
Correspondent:
CONOCOPHILLIPS COMPANY - IP SERVICES GRO
600 NORTH DAIRY ASHFORD
MA 1135
HOUSTON, TX 77079-1175

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