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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:	007779/0805			Pages:	6
		Recorded:	01/26/1996
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Total properties: 38

Patent #:	4183713	Issue Dt:		Application #:	05867711	Filing Dt:
Title:

Patent #:	4161448	Issue Dt:	07/17/1979	Application #:	05879811	Filing Dt:	02/21/1978
Title:	COMBINED SEPARATOR AND PUMP WITH DIRTY PHASE CONCENTRATOR

Patent #:	4264269	Issue Dt:	04/28/1981	Application #:	05945540	Filing Dt:	09/25/1978
Title:	CENTRIFUGAL PITOT PUMP WITH IMPROVED PITOT

Patent #:	4280790	Issue Dt:	07/28/1981	Application #:	06015120	Filing Dt:	02/26/1979
Title:	CENTRIFUGAL PITOT PUMP WITH MEANS FOR IMPROVING NET POSITIVE SUCTION HEAD

Patent #:	4299352	Issue Dt:	11/10/1981	Application #:	06023204	Filing Dt:	03/23/1979
Title:	CENTRIFUGE APPARATUS

Patent #:	4251184	Issue Dt:	02/17/1981	Application #:	06023205	Filing Dt:	03/23/1979
Title:	CENTRIFUGAL PUMP

Patent #:	4281962	Issue Dt:	08/04/1981	Application #:	06023206	Filing Dt:	03/23/1979
Title:	HIGH PRESSURE CENTRIFUGAL PUMP

Patent #:	4289610	Issue Dt:	09/15/1981	Application #:	06023207	Filing Dt:	03/23/1979
Title:	APPARATUS FOR PUMPING AND CONDITIONING DRILLING FLUID

Patent #:	4198218	Issue Dt:		Application #:	06023208	Filing Dt:
Title:

Patent #:	4322199	Issue Dt:	03/30/1982	Application #:	06023209	Filing Dt:	03/23/1979
Title:	HIGH SPECIFIC SPEED ROTARY CHAMBER PUMP

Patent #:	4243528	Issue Dt:	01/06/1981	Application #:	06051545	Filing Dt:	06/25/1979
Title:	TREATER FOR MECHANICALLY BREAKING OIL AND WATER EMULSIONS OF A PRODUCTION FLUID FROM A PETROLEUM WELL

Patent #:	4268281	Issue Dt:	05/19/1981	Application #:	06061211	Filing Dt:	07/27/1979
Title:	A METHOD OF REMOVING PARTICULATE CONTAMINANTS FROM A GAS SYSTEM

Patent #:	4279571	Issue Dt:	07/21/1981	Application #:	06080377	Filing Dt:	10/01/1979
Title:	PITOT PUMP WITH FLUID LUBRICATED BEARINGS

Patent #:	4283005	Issue Dt:	08/11/1981	Application #:	06080379	Filing Dt:	10/01/1979
Title:	PUMP AND CENTRIFUGAL SEPARATOR APPARATUS

Patent #:	4267964	Issue Dt:	05/19/1981	Application #:	06080420	Filing Dt:	10/01/1979
Title:	CENTRIFUGAL SEPARATOR WITH ROTATING PICK-UP TUBE

Patent #:	4252499	Issue Dt:	02/24/1981	Application #:	06080617	Filing Dt:	10/01/1979
Title:	CENTRIFUGAL PUMP

Patent #:	4332521	Issue Dt:	06/01/1982	Application #:	06120188	Filing Dt:	02/11/1980
Title:	HIGH SPEED JET ROTATING CASING APPARATUS

Patent #:	4400267	Issue Dt:	08/23/1983	Application #:	06289530	Filing Dt:	08/03/1981
Title:	SEAL STRUCTURE FOR HYDROCYCLONES

Patent #:	4424183	Issue Dt:	01/03/1984	Application #:	06395094	Filing Dt:	07/06/1982
Title:	DESTRUCTIBLE CORE STRUCTURE AND METHOD FOR USING SAME

Patent #:	4706928	Issue Dt:	11/17/1987	Application #:	06743067	Filing Dt:	06/10/1985
Title:	VANE CORE ASSEMBLY FOR USE IN MAKING CENTRIFUGAL ELASTOMERIC COATED IMPELLERS

Patent #:	4732541	Issue Dt:	03/22/1988	Application #:	06845976	Filing Dt:	03/31/1986
Title:	CENTRIFUGAL ELASTOMERIC COATED IMPELLERS

Patent #:	4776760	Issue Dt:	10/11/1988	Application #:	06872529	Filing Dt:	06/10/1986
Title:	REINFORCED RUBBER LINER FOR CENTRIFUGAL PUMP CASTINGS

Patent #:	4998706	Issue Dt:	03/12/1991	Application #:	07170856	Filing Dt:	03/21/1988
Title:	VANE CORE ASSEMBLY FOR USE IN MAKING CENTRIFUGAL ELASTOMER COATED IMPELLERS

Patent #:	4932516	Issue Dt:	06/12/1990	Application #:	07197106	Filing Dt:	05/20/1988
Title:	CONVEYOR BELT CRADLE ASSEMBLY

Patent #:	4917571	Issue Dt:	04/17/1990	Application #:	07215352	Filing Dt:	07/05/1988
Title:	FLOW-STABILIZING VOLUTE PUMP AND LINER

Patent #:	4940394	Issue Dt:	07/10/1990	Application #:	07259079	Filing Dt:	10/18/1988
Title:	ADJUSTABLE WEARPLATES ROTARY PUMP

Patent #:	4911839	Issue Dt:	03/27/1990	Application #:	07307436	Filing Dt:	02/06/1989
Title:	MEMBRANE FILTER PLATE

Patent #:	4964986	Issue Dt:	10/23/1990	Application #:	07487675	Filing Dt:	03/02/1990
Title:	MEMBRANE FILTER PLATE

Patent #:	5127800	Issue Dt:	07/07/1992	Application #:	07507737	Filing Dt:	04/12/1990
Title:	FLOW-STABILIZING VOLUTE PUMP AND LINER

Patent #:	5192142	Issue Dt:	03/09/1993	Application #:	07589319	Filing Dt:	09/27/1990
Title:	PUMP IMPELLER RELEASE COLLAR ASSEMBLY

Patent #:	5134328	Issue Dt:	07/28/1992	Application #:	07680305	Filing Dt:	04/04/1991
Title:	SUBMERSIBLE PUMP PROTECTION FOR HOSTILE ENVIRONMENTS

Patent #:	5219461	Issue Dt:	06/15/1993	Application #:	07875244	Filing Dt:	04/28/1992
Title:	REINFORCED ELASTOMER LINING FOR PUMP CASING AND ASSOCIATED METHOD OF MANUFACTURE

Patent #:	5209595	Issue Dt:	05/11/1993	Application #:	07877416	Filing Dt:	05/01/1992
Title:	DRIVE SHAFT, DRIVE ASSEMBLY AND RELATED METHOD

Patent #:	5238363	Issue Dt:	08/24/1993	Application #:	07972867	Filing Dt:	11/04/1992
Title:	DUAL SUCTION VERTICAL PUMP WITH PENDANT AUGER

Patent #:	5332373	Issue Dt:	07/26/1994	Application #:	08099957	Filing Dt:	07/30/1993
Title:	VERTICAL PUMP AND METHOD FOR ACCESSING SAME

Patent #:	5472148	Issue Dt:	12/05/1995	Application #:	08159769	Filing Dt:	11/30/1993
Title:	GRINDING MILL, LINING AND ASSOCIATED METHOD OF MANUFACTURE

Patent #:	5427500	Issue Dt:	06/27/1995	Application #:	08212963	Filing Dt:	03/15/1994
Title:	SLURRY PUMP SEAL SYSTEM

Patent #:	5513954	Issue Dt:	05/07/1996	Application #:	08258273	Filing Dt:	06/10/1994
Title:	MULTILAYER PUMP LINER

Assignor

BAKER HUGHES INCORPORATED

Exec Dt:

09/30/1994

Assignee

ENVIROTECH PUMPSYSTEMS, INC.

440 WEST 800 SOUTH

SALT LAKE CITY, UTAH 84101

Correspondence name and address
	JACOBSON, PRICE, HOLMAN & STERN
	400 7TH STREET, N.W.
	WASHINGTON, DC 20004
	ATTN: D. DOUGLAS PRICE

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