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Patent Assignment Details

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Reel/Frame:	004725/0094			Pages:	26
		Recorded:	05/18/1987
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST.

Total properties: 231
Page 3 of 3
Pages: 1 2 3

Patent #:	4860654	Issue Dt:	08/29/1989	Application #:	06736742	Filing Dt:	05/22/1985
Title:	IMPLOSION SHAPED CHARGE PERFORATOR

Patent #:	4860655	Issue Dt:	08/29/1989	Application #:	06736743	Filing Dt:	05/22/1985
Title:	IMPLOSION SHAPED CHARGE PERFORATOR

Patent #:	4622849	Issue Dt:	11/18/1986	Application #:	06749377	Filing Dt:	06/27/1985
Title:	METHOD AND APPARATUS FOR DETERMINING CHARACTERISTICS OF CLAY-BEARING FORMATIONS

Patent #:	4674328	Issue Dt:	06/23/1987	Application #:	06757054	Filing Dt:	07/19/1985
Title:	METHOD AND APPARATUS FOR DETERMINING SUBSURFACE CONDITIONS USING A TUBING PACKOFF TOOL

Patent #:	4650009	Issue Dt:	03/17/1987	Application #:	06763000	Filing Dt:	08/06/1985
Title:	APPARATUS AND METHOD FOR USE IN SUBSURFACE OIL AND GAS WELL PERFORATING DEVICE

Patent #:	4646273	Issue Dt:	02/24/1987	Application #:	06779180	Filing Dt:	09/23/1985
Title:	METHOD AND APPARATUS FOR EVALUATING FLOW CHARACTERISTICS OF FLUID BEHIND PIPE

Patent #:	4700140	Issue Dt:	10/13/1987	Application #:	06786032	Filing Dt:	10/10/1985
Title:	DETERMINATION OF WATER OR RESIDUAL OIL SATURATION IN EARTH FORMATIONS INDEPENDENT OF LITHOLOGY

Patent #:	4697150	Issue Dt:	09/29/1987	Application #:	06786551	Filing Dt:	10/11/1985
Title:	TWO ELECTRODE WELL LOGGING SYSTEM FOR MEASURING RESISTIVITY OF SUBSURFACE FORMATIONS

Patent #:	4643097	Issue Dt:	02/17/1987	Application #:	06791633	Filing Dt:	10/25/1985
Title:	SHAPED CHARGE PERFORATING APPARATUS

Patent #:	4627353	Issue Dt:	12/09/1986	Application #:	06791634	Filing Dt:	10/25/1985
Title:	SHAPED CHARGE PERFORATING APPARATUS

Patent #:	4681160	Issue Dt:	07/21/1987	Application #:	06797275	Filing Dt:	11/12/1985
Title:	APPARATUS FOR SECURING A MEASUREMENT WHILE DRILLING (MWD) INSTRUMENT WITHIN A PIPE

Patent #:	4751461	Issue Dt:	06/14/1988	Application #:	06799225	Filing Dt:	11/18/1985
Title:	METHOD OF LOCATING AND DETERMING THE EXTENT OF CORROSION IN TUBULAR GOODS

Patent #:	4878180	Issue Dt:	10/31/1989	Application #:	06799226	Filing Dt:	11/18/1985
Title:	METHOD OF EVALUATING THE CONDITION OF TUBULAR GOODS

Patent #:	4710711	Issue Dt:	12/01/1987	Application #:	06805027	Filing Dt:	12/04/1985
Title:	APPARATUS FOR NONDESTRUCTIVE TESTING OF SUBSURFACE PIPING USING THREE COILS WITH OPPOSING FIELDS

Patent #:	4669384	Issue Dt:	06/02/1987	Application #:	06814819	Filing Dt:	12/30/1985
Title:	HIGH TEMPERATURE SHAPED CHARGE PERFORATING APPARATUS

Patent #:	4720996	Issue Dt:	01/26/1988	Application #:	06818528	Filing Dt:	01/10/1986
Title:	POWER CONTROL SYSTEM FOR SUBSURFACE FORMATION TESTING APPARATUS

Patent #:	4756189	Issue Dt:	07/12/1988	Application #:	06829340	Filing Dt:	02/14/1986
Title:	METHOD AND APPARATUS FOR DETERMINING CHARACTERISTICS OF CLAY-BEARING FORMATIONS

Patent #:	4736298	Issue Dt:	04/05/1988	Application #:	06839490	Filing Dt:	03/14/1986
Title:	METHOD OF DETECTING COLLARS USING COMPUTERIZED PATTERN RECOGNITION

Patent #:	4744030	Issue Dt:	05/10/1988	Application #:	06858412	Filing Dt:	04/29/1986
Title:	METHOD AND APPARATUS FOR MEASURING INTERNAL CASING WEAR

Patent #:	4751460	Issue Dt:	06/14/1988	Application #:	06869635	Filing Dt:	06/02/1986
Title:	METHOD AND APPARATUS FOR NONDESTRUCTIVE INSPECTION OF MAGNETIC PIPING

Patent #:	4784238	Issue Dt:	11/15/1988	Application #:	06885048	Filing Dt:	07/14/1986
Title:	LARGE DIAMETER BOREHOLE APPARATUS

Patent #:	4825072	Issue Dt:	04/25/1989	Application #:	06911859	Filing Dt:	09/26/1986
Title:	METHOD AND APPARATUS FOR DETERMINING WELL FLUID FLOW VELOCITY USING A NONRADIOACTIVE TRACER

Patent #:	4765409	Issue Dt:	08/23/1988	Application #:	06914837	Filing Dt:	10/02/1986
Title:	AUTOMATIC SEPARATION DEVICE FOR USE WITH WIRELINE CONVEYED PERFORATING GUN

Patent #:	4718011	Issue Dt:	01/05/1988	Application #:	06934060	Filing Dt:	11/24/1986
Title:	WELL LOGGING DATA ACQUISITION, TELEMETRY AND CONTROL METHOD AND SYSTEM

Patent #:	4738319	Issue Dt:	04/19/1988	Application #:	07009154	Filing Dt:	01/30/1987
Title:	APPARATUS AND METHOD FOR USE IN SUBSURFACE OIL AND GAS WELL PERFORATING DEVICE

Patent #:	4978851	Issue Dt:	12/18/1990	Application #:	07016168	Filing Dt:	02/19/1987
Title:	METHOD AND APPARATUS FOR MEASURING SUBSURFACE CHARACTERISTICS USING PULSED NEITRON/GAMMA RAY LOGGING

Patent #:	3996473	Issue Dt:		Application #:	UNAVAILABLE	Filing Dt:
Title:

Patent #:	3860816	Issue Dt:		Application #:	UNAVAILABLE	Filing Dt:
Title:

Patent #:	3693029	Issue Dt:		Application #:	UNAVAILABLE	Filing Dt:
Title:

Patent #:	3714468	Issue Dt:		Application #:	UNAVAILABLE	Filing Dt:
Title:

Patent #:	4082144	Issue Dt:		Application #:	UNAVAILABLE	Filing Dt:
Title:

Assignor

Exec Dt:

04/30/1987

Assignee

Correspondence name and address
	WESTERN ATLAS INTERNATIONAL, INC.
	P.O. BOX 2469
	HOUSTON, TX 77252

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