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Patent Assignment Details

NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Reel/Frame:	011449/0400			Pages:	10
		Recorded:	01/17/2001
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Total properties: 29

Patent #:	4438953	Issue Dt:	03/27/1984	Application #:	06238720	Filing Dt:	02/27/1981
Title:	TOOL JOINT BENCH MARK

Patent #:	4549754	Issue Dt:	10/29/1985	Application #:	06505948	Filing Dt:	06/20/1983
Title:	TOOL JOINT

Patent #:	4893844	Issue Dt:	01/16/1990	Application #:	06771137	Filing Dt:	08/28/1985
Title:	TUBULAR COUPING WITH VENTABLE SEAL VENTABLE SEAL

Patent #:	4707001	Issue Dt:	11/17/1987	Application #:	06876712	Filing Dt:	06/20/1986
Title:	LINER CONNECTION

Patent #:	4838068	Issue Dt:	06/13/1989	Application #:	07218839	Filing Dt:	07/14/1988
Title:	THREADED CONNECTION FOR PIPES AND METHOD OF FABRICATING SAME

Patent #:	4944538	Issue Dt:	07/31/1990	Application #:	07320476	Filing Dt:	03/08/1989
Title:	THREADED PIPE JOINT HAVING IMPROVED SEAL RING ENTRAPMENT

Patent #:	4946201	Issue Dt:	08/07/1990	Application #:	07320718	Filing Dt:	03/08/1989
Title:	OIL FIELD TUBULAR CONNECTION

Patent #:	5010225	Issue Dt:	04/23/1991	Application #:	07408074	Filing Dt:	09/15/1989
Title:	TOOL JOINT AND METHOD OF HARDSURFACING SAME

Patent #:	5066052	Issue Dt:	11/19/1991	Application #:	07470116	Filing Dt:	01/25/1990
Title:	THREADED PIPE JOINT HAVING IMPROVED SEAL RING ENTRAPMENT

Patent #:	5064224	Issue Dt:	11/12/1991	Application #:	07480804	Filing Dt:	02/16/1990
Title:	OIL FIELD TUBULAR CONNECTION

Patent #:	5092635	Issue Dt:	03/03/1992	Application #:	07516138	Filing Dt:	04/27/1990
Title:	THREAD FORM

Patent #:	5101906	Issue Dt:	04/07/1992	Application #:	07610301	Filing Dt:	11/05/1990
Title:	HORIZONTAL DRILLING OR COMPLETION METHOD

Patent #:	5147996	Issue Dt:	09/15/1992	Application #:	07687438	Filing Dt:	04/18/1991
Title:	TOOL JOINT AND METHOD OF HARDSURFACING SAME

Patent #:	5165491	Issue Dt:	11/24/1992	Application #:	07692620	Filing Dt:	04/29/1991
Title:	METHOD OF HORIZONTAL DRILLING

Patent #:	5148876	Issue Dt:	09/22/1992	Application #:	07712529	Filing Dt:	06/10/1991
Title:	LIGHTWEIGHT DRILL PIPE

Patent #:	5184495	Issue Dt:	02/09/1993	Application #:	07801969	Filing Dt:	12/03/1991
Title:	METHOD OF INTERNALLY AND EXTERNALLY UPSETTING THE END OF A METAL TUBE

Patent #:	5286069	Issue Dt:	02/15/1994	Application #:	07985832	Filing Dt:	12/03/1992
Title:	STRESS RELIEF GROOVE FOR DRILL PIPE

Patent #:	5355968	Issue Dt:	10/18/1994	Application #:	08064858	Filing Dt:	05/20/1993
Title:	TOOL JOINT STRESS RELIEF GROOVE

Patent #:	5433130	Issue Dt:	07/18/1995	Application #:	08122157	Filing Dt:	09/17/1993
Title:	SHOULDER DRESSING APPARATUS

Patent #:	5361846	Issue Dt:	11/08/1994	Application #:	08155011	Filing Dt:	11/19/1993
Title:	APPARATUS AND METHOD FOR ENHANCING FATIGUE PROPERTIES OF SUBTERRANEAN WELL DRILL PIPE IMMEDIATE THE AREA OF SECUREMENT TO A TOOL JOINT

Patent #:	5358285	Issue Dt:	10/25/1994	Application #:	08182211	Filing Dt:	01/13/1994
Title:	STRESS RELIEF GROOVE FOR DRILL PIPE

Patent #:	5479721	Issue Dt:	01/02/1996	Application #:	08220281	Filing Dt:	03/30/1994
Title:	METHOD AND APPARATUS FOR MEASURING THE LENGTH (MIU) OF THE INTERNAL TAPER OF AN INTERNALLY UPSET DRILL PIPE TUBE

Patent #:	5535837	Issue Dt:	07/16/1996	Application #:	08270247	Filing Dt:	07/05/1994
Title:	HELICAL STRESS RELIEF GROOVE APPARATUS AND METHOD FOR SUBTERRANEAN WELL DRILL PIPE ASSEMBLIES

Patent #:	5492375	Issue Dt:	02/20/1996	Application #:	08278419	Filing Dt:	07/21/1994
Title:	DRILL PIPE WITH IMPROVED CONNECTORS

Patent #:	5562318	Issue Dt:	10/08/1996	Application #:	08380498	Filing Dt:	01/30/1995
Title:	ANIMAL WASTE COLLECTOR

Patent #:	5908212	Issue Dt:	06/01/1999	Application #:	08850658	Filing Dt:	05/02/1997
Title:	ULTRA HIGH TORQUE DOUBLE SHOULDER TOOL JOINT

Patent #:	5931511	Issue Dt:	08/03/1999	Application #:	08850735	Filing Dt:	05/02/1997
Title:	THREADED CONNECTION FOR ENHANCED FATIGUE RESISTANCE

Patent #:	6042153	Issue Dt:	03/28/2000	Application #:	09030459	Filing Dt:	02/25/1998
Title:	THREADED CONNECTION FOR INTERNALLY CLAD PIPE

Patent #:	6012744	Issue Dt:	01/11/2000	Application #:	09071253	Filing Dt:	05/01/1998
Title:	HEAVY WEIGHT DRILL PIPE

Assignor

Exec Dt:

12/28/2000

Assignee

SUITE 600

1450 LAKE ROBBINS DRIVE

THE WOODLANDS, TEXAS 77380

Correspondence name and address
	GRANT PRIDECO, L.P.
	DOUGLAS H. MAY
	P.O. BOX 8489
	THE WOODLANDS, TEXAS 77387

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