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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:	006822/0975			Pages:	9
		Recorded:	01/12/1994
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Total properties: 52

Patent #:	4128108	Issue Dt:	12/05/1978	Application #:	05789018	Filing Dt:	04/20/1977
Title:	MUD RETAINING VALVE

Patent #:	4201392	Issue Dt:	05/06/1980	Application #:	06030285	Filing Dt:	04/16/1979
Title:	HIGH AND LOW PRESSURE SEAL

Patent #:	4498534	Issue Dt:	02/12/1985	Application #:	06079037	Filing Dt:	09/26/1979
Title:	LINER HANGER ASSEMBLY

Patent #:	4287949	Issue Dt:	09/08/1981	Application #:	06109979	Filing Dt:	01/07/1980
Title:	SETTING TOOLS AND LINER HANGER ASSEMBLY

Patent #:	4397355	Issue Dt:	08/09/1983	Application #:	06268482	Filing Dt:	05/29/1981
Title:	WHIPSTOCK SETTING METHOD AND APPARATUS

Patent #:	4497371	Issue Dt:	02/05/1985	Application #:	06274170	Filing Dt:	06/16/1981
Title:	SETTING TOOL AND RETRIEVABLE LANDING ASSEMBLY

Patent #:	4399873	Issue Dt:	08/23/1983	Application #:	06274284	Filing Dt:	06/16/1981
Title:	RETRIEVABLE INSERT LANDING ASSEMBLY

Patent #:	4482014	Issue Dt:	11/13/1984	Application #:	06397680	Filing Dt:	07/12/1982
Title:	BARRIER TOOL FOR POLISHED BORE RECEPTACLE

Patent #:	RE31881	Issue Dt:	05/14/1985	Application #:	06529757	Filing Dt:	09/06/1983
Title:	SETTING TOOLS AND LINER HANGER ASSEMBLY

Patent #:	5181570	Issue Dt:	01/26/1993	Application #:	06609104	Filing Dt:	05/10/1984
Title:	LINER HANGER ASSEMBLY

Patent #:	4550781	Issue Dt:	11/05/1985	Application #:	06617746	Filing Dt:	06/06/1984
Title:	METHOD OF AND APPARATUS FOR CUTTING AND RECOVERING OF SUBMARINE SURFACE CASING

Patent #:	4603743	Issue Dt:	08/05/1986	Application #:	06697231	Filing Dt:	02/01/1985
Title:	HYDRAULIC/MECHANICAL SETTING TOOL AND LINER HANGER

Patent #:	4601343	Issue Dt:	07/22/1986	Application #:	06698145	Filing Dt:	02/04/1985
Title:	PBR WITH LATCHING SYSTEM FOR TUBING

Patent #:	4660863	Issue Dt:	04/28/1987	Application #:	06758370	Filing Dt:	07/24/1985
Title:	CASING PATCH SEAL

Patent #:	4646826	Issue Dt:	03/03/1987	Application #:	06759737	Filing Dt:	07/29/1985
Title:	WELL STRING CUTTING APPARATUS

Patent #:	4671358	Issue Dt:	06/09/1987	Application #:	06810089	Filing Dt:	12/18/1985
Title:	WIPER PLUG CEMENTING SYSTEM AND METHOD OF USE THEREOF

Patent #:	4722615	Issue Dt:	02/02/1988	Application #:	06851828	Filing Dt:	04/14/1986
Title:	DRILLING APPARATUS AND CUTTER THEREFOR

Patent #:	4754820	Issue Dt:	07/05/1988	Application #:	06875886	Filing Dt:	06/18/1986
Title:	DRILLING HEAD WITH BAYONET COUPLING

Patent #:	4712615	Issue Dt:	12/15/1987	Application #:	06881053	Filing Dt:	07/01/1986
Title:	LINER HANGER ASSEMBLY WITH SETTING TOOL

Patent #:	4712614	Issue Dt:	12/15/1987	Application #:	06901835	Filing Dt:	08/29/1986
Title:	LINER HANGER ASSEMBLY WITH COMBINATION SETTING TOOL

Patent #:	4793424	Issue Dt:	12/27/1988	Application #:	07020260	Filing Dt:	02/27/1987
Title:	SELF-LUBRICATING WELL TOOLS AND SEAL ELEMENTS THEREFOR

Patent #:	4765404	Issue Dt:	08/23/1988	Application #:	07037517	Filing Dt:	04/13/1987
Title:	WHIPSTOCK PACKER ASSEMBLY

Patent #:	4759413	Issue Dt:	07/26/1988	Application #:	07037818	Filing Dt:	04/13/1987
Title:	METHOD AND APPARATUS FOR SETTING AN UNDERWATER DRILLING SYSTEM

Patent #:	4898243	Issue Dt:	02/06/1990	Application #:	07147533	Filing Dt:	01/25/1988
Title:	LINER AND DRILL PIPE ASSEMBLY

Patent #:	4865137	Issue Dt:	09/12/1989	Application #:	07186716	Filing Dt:	04/22/1988
Title:	DRILLING APPARATUS AND CUTTER

Patent #:	4848462	Issue Dt:	07/18/1989	Application #:	07191387	Filing Dt:	05/09/1988
Title:	ROTATABLE LINER HANGER

Patent #:	4828037	Issue Dt:	05/09/1989	Application #:	07191578	Filing Dt:	05/09/1988
Title:	LINER HANGER WITH RETRIEVABLE BALL VALVE SEAT

Patent #:	4862966	Issue Dt:	09/05/1989	Application #:	07194131	Filing Dt:	05/16/1988
Title:	LINER HANGER WITH COLLAPSIBLE BALL VALVE SEAT

Patent #:	4880058	Issue Dt:	11/14/1989	Application #:	07194132	Filing Dt:	05/16/1988
Title:	STAGE CEMENTING VALVE

Patent #:	4909320	Issue Dt:	03/20/1990	Application #:	07258228	Filing Dt:	10/14/1988
Title:	DETONATION ASSEMBLY FOR EXPLOSIVE WELLHEAD SEVERING SYSTEM

Patent #:	4962819	Issue Dt:	10/16/1990	Application #:	07305213	Filing Dt:	02/01/1989
Title:	MUD SAVER VALVE WITH REPLACEABLE INNER SLEEVE

Patent #:	4955949	Issue Dt:	09/11/1990	Application #:	07305319	Filing Dt:	02/01/1989
Title:	MUD SAVER VALVE WITH INCREASED FLOW CHECK VALVE

Patent #:	4984636	Issue Dt:	01/15/1991	Application #:	07313688	Filing Dt:	02/21/1989
Title:	GEOTHERMAL WELLHEAD REPAIR UNIT

Patent #:	4926938	Issue Dt:	05/22/1990	Application #:	07351734	Filing Dt:	05/12/1989
Title:	ROTATABLE LINER HANGER WITH MULTIPLE BEARINGS AND CONES

Patent #:	5009265	Issue Dt:	04/23/1991	Application #:	07404159	Filing Dt:	09/07/1989
Title:	PACKER FOR WELLHEAD REPAIR UNIT

Patent #:	5048611	Issue Dt:	09/17/1991	Application #:	07533028	Filing Dt:	06/04/1990
Title:	PRESSURE OPERATED CIRCULATION VALVE

Patent #:	5040600	Issue Dt:	08/20/1991	Application #:	07540712	Filing Dt:	06/20/1990
Title:	GEOTHERMAL WELLHEAD REPAIR UNIT

Patent #:	5062479	Issue Dt:	11/05/1991	Application #:	07560526	Filing Dt:	07/31/1990
Title:	STRIPPER RUBBERS FOR DRILLING HEADS

Patent #:	5058672	Issue Dt:	10/22/1991	Application #:	07566064	Filing Dt:	08/13/1990
Title:	LANDING COLLAR AND FLOAT VALVE ASSEMBLY

Patent #:	5048606	Issue Dt:	09/17/1991	Application #:	07579547	Filing Dt:	09/10/1990
Title:	SETTING TOOL FOR A LINER HANGER ASSEMBLY

Patent #:	5074362	Issue Dt:	12/24/1991	Application #:	07579653	Filing Dt:	09/10/1990
Title:	FINGER NUT SETTING TOOL AND LINER HANGER ASSEMBLY

Patent #:	5048612	Issue Dt:	09/17/1991	Application #:	07579654	Filing Dt:	09/10/1990
Title:	DOUBLE NUT SETTING TOOL AND LINGER HANGER ASSEMBLY

Patent #:	5154231	Issue Dt:	10/13/1992	Application #:	07585532	Filing Dt:	09/19/1990
Title:	WHIPSTOCK ASSEMBLY WITH HYDRAULICALLY SET ANCHOR

Patent #:	5058071	Issue Dt:	10/15/1991	Application #:	07646508	Filing Dt:	01/24/1991
Title:	SEMICONDUCTOR MEMORY DEVICE HAVING MEANS FOR REPAIRING THE MEMORY DEVICE WITH RESPECT TO POSSIBLE DETECTIVE MEMORY PORTIONS

Patent #:	5213158	Issue Dt:	05/25/1993	Application #:	07811553	Filing Dt:	12/20/1991
Title:	DUAL ROTATING STRIPPER RUBBER DRILLING HEAD

Patent #:	5238063	Issue Dt:	08/24/1993	Application #:	07925718	Filing Dt:	08/04/1992
Title:	PRESSURE BALANCED CHARGE CONTAINER FOR WELLHEAD SEVERING SYSTEM

Patent #:	5335737	Issue Dt:	08/09/1994	Application #:	07978842	Filing Dt:	11/19/1992
Title:	RETRIEVABLE WHIPSTOCK

Patent #:	5305839	Issue Dt:	04/26/1994	Application #:	08004886	Filing Dt:	01/19/1993
Title:	TURBINE PUMP RING FOR DRILLING HEADS

Patent #:	5348107	Issue Dt:	09/20/1994	Application #:	08023499	Filing Dt:	02/26/1993
Title:	PRESSURE BALANCED INNER CHAMBER OF A DRILLING HEAD

Patent #:	4083405	Issue Dt:		Application #:	UNAVAILABLE	Filing Dt:
Title:

Patent #:	4080115	Issue Dt:		Application #:	UNAVAILABLE	Filing Dt:
Title:

Patent #:	4054040	Issue Dt:		Application #:	UNAVAILABLE	Filing Dt:
Title:

Assignor

MASX ENERGY SERVICES GROUP, INC. (A DELAWARE CORPORATION)

Exec Dt:

12/22/1993

Assignee

SMITH INTERNATIONAL, INC. (A DELAWARE CORPORATION)

16740 HARDY

HOUSTON, TEXAS 77032

Correspondence name and address
	MARC A. HUBBARD
	GARDERE & WYNNE, L.L.P.
	1601 ELM STREET, STE. 3000
	DALLAS, TEXAS 75201

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