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Patent Assignment Abstract of Title
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Total Assignments: 1
Patent #:
5796677
Issue Dt:
08/18/1998
Application #:
08235625
Filing Dt:
04/29/1994
Inventors:
SERGIO KOSTEK, SHU-KONG CHANG, GORDON MCDANIEL, THOMAS PLONA, CURTIS RANDALL et al
Title:
METHOD OF AND APPARATUS FOR SONIC LOGGING WHILE DRILLING A BOREHOLE TRAVERSING AN EARTH FORMATION
Assignment: 1
Reel/Frame:
007022/0230Recorded: 06/06/1994Pages: 7
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
KOSTEK, SERGIO
Exec Dt:
05/09/1994
CHANG, SHU-KONG
Exec Dt:
06/02/1994
MCDANIEL, GORDON L.
Exec Dt:
05/19/1994
PLONA, THOMAS
Exec Dt:
05/18/1994
RANDALL, CURTIS
Exec Dt:
06/01/1994
MASSON, JEAN-PIERRE
Exec Dt:
06/02/1994
MAYES, JAMES C.
Exec Dt:
06/02/1994
HSU, KAI
Exec Dt:
06/02/1994
Assignee:
SCHLUMBERGER TECHNOLOGY CORPORATION
5000 GULF FREEWAY
HOUSTON, TEXAS 77023
Correspondent:
PATENT COUNSEL
ANADRILL SCHLUMBERGER
200 GILLINGHAM LANE
SUGAR LAND, TEXAS 77478

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