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Patent Assignment Details

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Reel/Frame:	006481/0804			Pages:	3
		Recorded:	04/08/1993
Conveyance:	MERGER (SEE DOCUMENT FOR DETAILS). EFFECTIVE ON 03/15/1993CA

Total properties: 15

Patent #:	4710708	Issue Dt:	12/01/1987	Application #:	06401267	Filing Dt:	07/23/1982
Title:	METHOD AND APPARATUS EMPLOYING RECEIVED INDEPENDENT MAGNETIC FIELD COMPONENTS OF A TRANSMITTED ALTERNATING MAGNETIC FIELD FOR DETERMINING LOCATION

Patent #:	4587741	Issue Dt:	05/13/1986	Application #:	06536556	Filing Dt:	09/27/1983
Title:	BALL INCLINOMETER

Patent #:	4646831	Issue Dt:	03/03/1987	Application #:	06650665	Filing Dt:	09/14/1984
Title:	PRECISION CONNECTOR FOR WELL INSTRUMENTATION

Patent #:	4736791	Issue Dt:	04/12/1988	Application #:	06730397	Filing Dt:	05/03/1985
Title:	SUBSURFACE DEVICE ACTUATOR REQUIRING MINIMUM POWER

Patent #:	4926188	Issue Dt:	05/15/1990	Application #:	06865623	Filing Dt:	05/21/1986
Title:	GIMBALLED ANTENNA

Patent #:	4787093	Issue Dt:	11/22/1988	Application #:	06907727	Filing Dt:	09/15/1986
Title:	COMBINATORIAL CODED TELEMETRY

Patent #:	4953616	Issue Dt:	09/04/1990	Application #:	07181599	Filing Dt:	04/14/1988
Title:	SOLENOID ACTUATOR AND PULSE DRIVE

Patent #:	4878053	Issue Dt:	10/31/1989	Application #:	07181678	Filing Dt:	04/14/1988
Title:	ACTUATION METHOD

Patent #:	4908804	Issue Dt:	03/13/1990	Application #:	07212670	Filing Dt:	06/28/1988
Title:	COMBINATORIAL CODED TELEMETRY IN MWD

Patent #:	5027129	Issue Dt:	06/25/1991	Application #:	07419893	Filing Dt:	10/11/1989
Title:	GIMBALLED ANTENNA

Patent #:	5067114	Issue Dt:	11/19/1991	Application #:	07500107	Filing Dt:	03/26/1990
Title:	CORRELATION FOR COMBINATORIAL CODED TELEMETRY

Patent #:	5089779	Issue Dt:	02/18/1992	Application #:	07581561	Filing Dt:	09/10/1990
Title:	METHOD AND APPARATUIS FOR MEASURING STRATA RESISTIVITY ADJACENT A BOREHOLE

Patent #:	5160925	Issue Dt:	11/03/1992	Application #:	07686772	Filing Dt:	04/17/1991
Title:	SHORT HOP COMMUNICATION LINK FOR DOWNHOLE MWD SYSTEM

Patent #:	5260662	Issue Dt:	11/09/1993	Application #:	07899020	Filing Dt:	06/15/1992
Title:	CONDUCTIVITY METHOD AND APPARATUS FOR MEASURING STRATA RESISTIVITY ADJACENT A BOREHOLE

Patent #:	4221834	Issue Dt:		Application #:	UNAVAILABLE	Filing Dt:
Title:

Assignor

Exec Dt:

03/15/1993

Assignee

3900 ESSEX LANE

HOUSTON, TEXAS 77027

Correspondence name and address
	CARL A. ROWOLD
	OR THERESA M. BUSTAMANTE
	3900 ESSEX LANE
	HOUSTON, TX 77027

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